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

The video starts showing the company logo for a roofing company. a voice

a). is heard reciting the steps to applying ridges on a roof..
b). is giving instructions on how to get the instant..
c). is reading the roofing materials then subscribe to the website..
d). is talking about the roofing company that the money you will receive will be until it can be paid..
The answer is:
a).