If V1 is the jet velocity and V0 is the vehicle velocity, then the propulsive efficiency of a rocket is given by

• A. <img src="/_files/images/mechanical-engineering/ic-engines-and-nuclear-power-plants/350-194-1.png">
• B. <img src="/_files/images/mechanical-engineering/ic-engines-and-nuclear-power-plants/350-194-2.png">
• C. <img src="/_files/images/mechanical-engineering/ic-engines-and-nuclear-power-plants/350-192-2.png">
• D. <img src="/_files/images/mechanical-engineering/ic-engines-and-nuclear-power-plants/350-192-1.png">