How does the power varies with the variations in the speed, for a dc shunt motor?

• A. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-speed-control-dc-motors-q10a.png"><img alt="The power varies with the variations in the speed for a dc shunt motor - option a" class="alignnone size-full wp-image-160870" height="213" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-speed-control-dc-motors-q10a.png" width="300"/></a>
• B. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-speed-control-dc-motors-q10b.png"><img alt="The power varies with the variations in the speed for a dc shunt motor - option b" class="alignnone size-full wp-image-160871" height="232" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-speed-control-dc-motors-q10b.png" width="300"/></a>
• C. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-speed-control-dc-motors-q10c.png"><img alt="The power varies with the variations in the speed for a dc shunt motor - option c" class="alignnone size-full wp-image-160872" height="220" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-speed-control-dc-motors-q10c.png" width="300"/></a>
• D. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-speed-control-dc-motors-q10d.png"><img alt="The power varies with the variations in the speed for a dc shunt motor - option d" class="alignnone size-full wp-image-160873" height="202" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-speed-control-dc-motors-q10d.png" width="300"/></a>