Which One of the Following Is NOT an Example of the Conservation

Multiple Choice

Which one of the following is NOT an example of the conservation of angular momentum?

A) A figure skater spins faster as she brings her arms in close to her body.
B) Earth moves faster in its orbit at those times of the year when it is closer to the Sun (Kepler's second law) .
C) The particles in the nebula around a protostar move faster in their orbits as the nebula collapses inward.
D) The Moon always keeps one face pointed toward Earth.