For maximum power, the velocity of the belt will be

• A. <img src="/_files/images/mechanical-engineering/machine-design/588-388-1.png">
• B. <img src="/_files/images/mechanical-engineering/machine-design/588-388-2.png">
• C. <img src="/_files/images/mechanical-engineering/machine-design/588-388-3.png">
• D. none of these