In linear motion, the energy is given by 1⁄2 × m × v²; similarly, in rotational motion, the rotational energy is given by:

• A. 1⁄2 × I² × ?; where I: moment of inertia of the body, ?: angular velocity
• B. 1⁄2 × I × ?; where I: moment of inertia of the body, ?: angular velocity
• C. 1⁄2 × I² × ?²; where I: moment of inertia of the body, ?: angular veloci
• D. 1⁄2 × I × ?²; where I: moment of inertia of the body, ?: angular velocity