The verb phrase is
show us the video
<span>Oh say I would consult reliable sources, how I would know that it was reliable is by looking at the link! if it has edu. or anything proven to be reliable, I will choose it. I will not go on wiki because it is informal and some of the given information can be wrong.</span>
Correct me if I'm wrong but I believe it is phrase or clause containing three or more words at the beginning or end of a sentence.
Answer:
C. Do details support each main point?
Explanation: