Please help ! I’ll mark brainless. :)

king acknowledged the struggles and hardships faced by his fellow African Americans for the civil rights cause. a. He referred to a variety of difficulties they had to face ranging from police brutality to being shut up in narrow jail cells.

wonder full my friend keep going

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.