Full Moon is the answer, letter B.
When the full illuminated face of the Moon visible on Earth, it is on the Full Moon phase.
>New moon - the illuminated side of the Moon is away from the Earth. only the shadowed side can be seen.
>Waning gibbous - the Moon is less than fully illuminated, but, is more than half.
>Waxing crescent - first sliver of the Moon that we can see.