Which one of the following is the correct labelling of the temperature-enthalpy relationship curve of a mixture?

• A. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-enthalpy-diagrams-q9a.png"><img alt="The temperature-enthalpy relationship curve of a mixture - option a" class="alignnone size-full wp-image-248496" height="240" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-enthalpy-diagrams-q9a.png" width="252"/></a>
• B. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-enthalpy-diagrams-q9b.png"><img alt="The temperature-enthalpy relationship curve of a mixture - option b" class="alignnone size-full wp-image-248497" height="237" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-enthalpy-diagrams-q9b.png" width="243"/></a>
• C. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-enthalpy-diagrams-q9c.png"><img alt="The temperature-enthalpy relationship curve of a mixture - option c" class="alignnone size-full wp-image-248498" height="240" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-enthalpy-diagrams-q9c.png" width="246"/></a>
• D. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-enthalpy-diagrams-q9d.png"><img alt="The temperature-enthalpy relationship curve of a mixture - option d" class="alignnone size-full wp-image-248499" height="245" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/heat-transfer-operations-questions-answers-temperature-enthalpy-diagrams-q9d.png" width="238"/></a>