A suffix ment of nouns, often concrete, denoting an action or resulting state ( abridgment; refreshment), a product ( fragment), or means ( ornament)
Suffix -tion. (non-productive) Used to form nouns meaning "the action of (a verb)" or "the result of (a verb)". Words ending in this suffix are almost always derived from a similar Latin word; a few (eg gumption) are not derived from Latin and are unrelated to any verb.
I think it is to take care of him
The verb phrase is
show us the video
Part A:
D, It suggests that the speaker is unhappy or troubled.
Part B:
A, He cannot sleep and needs to get out of the house.