How can the number of defects be determined?

• A. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-crystal-defects-q2a.png"><img alt="The number of defects be determined - option a" class="size-full wp-image-239203" height="45" src="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-crystal-defects-q2a.png" width="88"/></a>
• B. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-crystal-defects-q2b.png"><img alt="The number of defects be determined - option b" class="size-full wp-image-239204" height="34" src="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-crystal-defects-q2b.png" width="64"/></a>
• C. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-crystal-defects-q2c.png"><img alt="The number of defects be determined - option c" class="size-full wp-image-239205" height="40" src="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-crystal-defects-q2c.png" width="82"/></a>
• D. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-crystal-defects-q2d.png"><img alt="The number of defects be determined - option d" class="size-full wp-image-239206" height="45" src="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-crystal-defects-q2d.png" width="96"/></a>