Im pretty sure question 4 is B
A topic sentence presents the main gist of the whole paragraph or article. So, if you want to talk about building a snowman, your topic sentence could be about why building snowmans are of relevance. Then, your supporting details could now include steps or advices on how to build it.
A good topic sentence I could think of is:
<em>During the yuletide season, building a snowman is a good activity to do with family and friends because it promotes team-building and fun interaction.</em>
Answer:
hey! thats when partial citations are enclosed within parentheses
or in your case: a way of crediting a reference within the body of the text
hope this helps!