Which of these fluids have their stress tensor linearly varying to the strain rate?

• A. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/computational-fluid-dynamics-questions-answers-stress-strain-tensor-q3a.png"><img alt="The fluids have their stress tensor linearly varying to the strain rate - option a" class="alignnone size-full wp-image-248683" height="160" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/computational-fluid-dynamics-questions-answers-stress-strain-tensor-q3a.png" width="154"/></a>
• B. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/computational-fluid-dynamics-questions-answers-stress-strain-tensor-q3b.png"><img alt="The fluids have their stress tensor linearly varying to the strain rate - option b" class="alignnone size-full wp-image-248684" height="168" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/computational-fluid-dynamics-questions-answers-stress-strain-tensor-q3b.png" width="155"/></a>
• C. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/computational-fluid-dynamics-questions-answers-stress-strain-tensor-q3c.png"><img alt="The fluids have their stress tensor linearly varying to the strain rate - option c" class="alignnone size-full wp-image-248685" height="157" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/computational-fluid-dynamics-questions-answers-stress-strain-tensor-q3c.png" width="143"/></a>
• D. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/10/computational-fluid-dynamics-questions-answers-stress-strain-tensor-q3d.png"><img alt="The fluids have their stress tensor linearly varying to the strain rate - option d" class="alignnone size-full wp-image-248686" height="159" src="https://www.sanfoundry.com/wp-content/uploads/2019/10/computational-fluid-dynamics-questions-answers-stress-strain-tensor-q3d.png" width="151"/></a>