A diagram of the Earth-Sun-Moon system is provided below. The diagram 2 points shows the relative position of the Moon at various times in the lunar cycle.
We would observe a totally dark moon starting to become illuminated
when the Moon moves between which two phases? *
Moon
Position Y
Sun
Moon
Position X
Moon
Position Z
Moon
Position W
O Position Wand Position Z
O Position X and Position W
Position Z and Position Y
оо
O Position Y and Position X