What relationship should there be if any between the position of the sun in the sky and the position of the moon in the sky when the moon (a) is full (a fully lit circle), (b) is new (a completely unlit and thus invisible circle), and (c) a half-circle? For example, you might say that full moons only appear in the sky opposite to the sun or you might say that there is no definite relationship. Explain your answers.
A) Full moon
B) New moon
C) Half-moon
D) No definite relationship