Which is the correct temperature regime for combined Conduction and Natural Convection through a conducting wall?

• A. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-interview-questions-answers-q2a.png"><img alt="Temperature regime for combined Conduction &amp; Natural Convection - option a" class="alignnone size-full wp-image-249716" height="247" sizes="(max-width: 338px) 100vw, 338px" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-interview-questions-answers-q2a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-interview-questions-answers-q2a.png 338w, https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-interview-questions-answers-q2a-300x219.png 300w" width="338"/></a>
• B. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-combined-heat-transfer-conduction-convection-q2b.png"><img alt="Temperature regime for combined Conduction &amp; Natural Convection - option b" class="alignnone size-full wp-image-246505" height="233" sizes="(max-width: 345px) 100vw, 345px" src="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-combined-heat-transfer-conduction-convection-q2b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-combined-heat-transfer-conduction-convection-q2b.png 345w, https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-combined-heat-transfer-conduction-convection-q2b-300x203.png 300w" width="345"/></a>
• C. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-combined-heat-transfer-conduction-convection-q2c.png"><img alt="Temperature regime for combined Conduction &amp; Natural Convection - option c" class="alignnone size-full wp-image-246506" height="299" sizes="(max-width: 434px) 100vw, 434px" src="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-combined-heat-transfer-conduction-convection-q2c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-combined-heat-transfer-conduction-convection-q2c.png 434w, https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-combined-heat-transfer-conduction-convection-q2c-300x207.png 300w" width="434"/></a>
• D. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-combined-heat-transfer-conduction-convection-q2d.png"><img alt="Temperature regime for combined Conduction &amp; Natural Convection - option d" class="alignnone size-full wp-image-246507" height="246" sizes="(max-width: 357px) 100vw, 357px" src="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-combined-heat-transfer-conduction-convection-q2d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-combined-heat-transfer-conduction-convection-q2d.png 357w, https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-combined-heat-transfer-conduction-convection-q2d-300x207.png 300w" width="357"/></a>