Which of the following is the correct symbol for the zener diode?

• A. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5a.png"><img alt="The following is the correct symbol for the zener diode - option a" class="alignnone size-full wp-image-252327" height="150" sizes="(max-width: 401px) 100vw, 401px" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5a.png 401w, https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5a-300x112.png 300w" width="401"/></a>
• B. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5b.png"><img alt="The following is the correct symbol for the zener diode - option b" class="alignnone size-full wp-image-252328" height="145" sizes="(max-width: 412px) 100vw, 412px" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5b.png 412w, https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5b-300x106.png 300w" width="412"/></a>
• C. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5c.png"><img alt="The following is the correct symbol for the zener diode - option c" class="alignnone size-full wp-image-252329" height="145" sizes="(max-width: 407px) 100vw, 407px" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5c.png 407w, https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5c-300x107.png 300w" width="407"/></a>
• D. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5d.png"><img alt="The following is the correct symbol for the zener diode - option d" class="alignnone size-full wp-image-252330" height="143" sizes="(max-width: 415px) 100vw, 415px" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5d.png 415w, https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-zenner-diode-q5d-300x103.png 300w" width="415"/></a>