The Moon's Angular Diameter in Our Sky Is Measured to Be

Multiple Choice

The Moon's angular diameter in our sky is measured to be 0.5 $\degree$ .From this,we can find

A) the mass density of the Moon if we know its distance from the Earth.
B) diameter of the Moon if we know the Moon's distance.
C) diameter of the Moon with no other information about the Moon.
D) distance to the Moon with no other information about the Moon.