Eric struggled to follow his client's directive to "retain the original feel of the logo" during the redesign.
By explaining problems and giving solutions! this is the best fit because the other two might make sense at a first glance, but only explaining problems and solutions would be an effective way to teach people how to set up an aquarium by giving them examples of what to do and what not to do whereas the others are just him talking about his aquarium.
I believe it's A, as it's asking for social context of the passage, meaning in what environment it was said at. (I may be wrong, please double check)
Answer:
I am pretty sure it would be A) Involver. if not I think it would be D) Quiet Submissive.