Answer:
If your options are:
A. Over the course of about a month, the shape of the moon does not change.
B. Over the course of about a month, the shape of the moon changes from a crescent, to a half circle, to three quarters of a circle, to a full circle.
C. Over the course of about a month, the shape of the moon changes from a crescent, to a full circle, to a half circle, and finally to three quarters of a circle.
D. Over the course of about a month, the shape of the moon changes from a full circle, to a crescent, and back to a full circle.
Then the correct answer is B.
Hope this helped!!