The torque characteristic is best described for a dc series motor with respect to armature current is?

• A. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13a.png"><img alt="The torque characteristic for dc series motor with respect to armature current - option a" class="alignnone size-full wp-image-160844" height="207" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13a.png" width="250"/></a>
• B. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13b.png"><img alt="The torque characteristic for dc series motor with respect to armature current - option b" class="alignnone size-full wp-image-160845" height="201" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13b.png" width="292"/></a>
• C. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13c.png"><img alt="The torque characteristic for dc series motor with respect to armature current - option c" class="alignnone size-full wp-image-160846" height="202" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13c.png" width="247"/></a>
• D. None of the mentioned