Answer:
A. Waning Crescent
B. Waxing Gibbous
3. The shape of the moon is that of an oblate spheroid, meaning it has the shape of a ball that is slightly flattened.
Source: May 12, 2022
https://earthsky.org › Space
The moon: 5 myths about our natural satellite - EarthSky
4. every 29.5 days
These eight phases are, in order, new Moon, waxing crescent, first quarter, waxing gibbous, full Moon, waning gibbous, third quarter and waning crescent. The cycle repeats once a month (every 29.5 days).
Source: https://solarsystem.nasa.gov › moons
Lunar Phases and Eclipses | Earth's Moon - NASA Solar System ...