Which of the following graph represents the I-V characteristics of a real diode?

• A. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/07/analog-circuits-interview-questions-answers-q1a.png"><img alt="Graph representing I-V characteristics of a real diode - option a" class="alignnone size-full wp-image-236284" height="183" src="https://www.sanfoundry.com/wp-content/uploads/2017/07/analog-circuits-interview-questions-answers-q1a.png" width="181"/></a>
• B. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/07/analog-circuits-interview-questions-answers-q1b.png"><img alt="Graph representing I-V characteristics of a real diode - option b" class="alignnone size-full wp-image-236285" height="173" src="https://www.sanfoundry.com/wp-content/uploads/2017/07/analog-circuits-interview-questions-answers-q1b.png" width="189"/></a>
• C. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/07/analog-circuits-interview-questions-answers-q1c.png"><img alt="Graph representing I-V characteristics of a real diode - option c" class="alignnone size-full wp-image-236286" height="204" src="https://www.sanfoundry.com/wp-content/uploads/2017/07/analog-circuits-interview-questions-answers-q1c.png" width="200"/></a>
• D. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/07/analog-circuits-interview-questions-answers-q1d.png"><img alt="Graph representing I-V characteristics of a real diode - option d" class="alignnone size-full wp-image-236287" height="180" src="https://www.sanfoundry.com/wp-content/uploads/2017/07/analog-circuits-interview-questions-answers-q1d.png" width="188"/></a>