This is a test of commonsense with single/multi-choices. Complete the next sentence:

A person holds a decoration and decides where to place it on the christmas tree. The woman hangs an ornament on the christmas tree. an angel

Options are: a. rests at the top of a christmas tree.. b. appears on top the christmas tree and makes wings.. c. is seen decorating the tree.. d. is outdoors and falls to the ground with the ornament..
The answer is:
a.