What is the unit of tensile strength of a material?

• A. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/11/engineering-materials-metallurgy-questions-answers-mechanical-properties-q5.png"><img alt="engineering-materials-metallurgy-questions-answers-mechanical-properties-q5" class="size-full wp-image-183608" height="43" src="https://www.sanfoundry.com/wp-content/uploads/2017/11/engineering-materials-metallurgy-questions-answers-mechanical-properties-q5.png" width="24"/></a>
• B. kg/cm²
• C. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/11/engineering-materials-metallurgy-questions-answers-mechanical-properties-q5-2.png"><img alt="engineering-materials-metallurgy-questions-answers-mechanical-properties-q5-2" class="size-full wp-image-183609" height="40" src="https://www.sanfoundry.com/wp-content/uploads/2017/11/engineering-materials-metallurgy-questions-answers-mechanical-properties-q5-2.png" width="28"/></a>
• D. cm²/kg