What Do Moonquakes Reveal About the Moon

Multiple Choice

What do moonquakes reveal about the Moon?

A) It has a strong magnetic field generated by a large molten core.
B) It has a differentiated core, displaced away from us by the Moon's rotation.
C) Its small, partially molten core has been pulled toward us by tidal forces.
D) The Moon has been geologically dead throughout its entire history.
E) The Moon is quite active, almost as much so as Jupiter's moon Io.