The correct options are
A The Moon is about half the size of the Earth.
B Winds blow slower on the Moon than on Earth.
The Moon is our nearest cosmic neighbour in the sky at an average distance of about 3,84,400 km. It is also the only natural satellite of our planet with a size slightly greater than one-fourth of that of our planet. The Moon is a dry, desolate celestial body with no atmosphere. So, there is no air, and hence, no wind on the Moon. We can only see one side of the Moon from the Earth, as the Moon's rotation period is equal to its revolution period.