Read the paragraph.
i have been a nurse for twenty years. in that time, i have seen a great number of patients suffer because they did not have health insurance. one of the worst cases was a young mother of two who was diagnosed with early stage skin cancer. because she could not afford treatment, the cancer spread from her skin to other parts of her body. by the time i saw her for the first time, the cancer had reached her brain and she could no longer be . this sort of thing should not happen to anyone. a strong universal health care system could prevent instances like this from occurring.
what makes this appeal from the paragraph convincing?
one of the worst cases was a young mother of two who was diagnosed with early stage skin cancer.
a) it uses a specific example as evidence.
b) it appeals to the reader’s sense of logic.
c) it shows the writer’s credibility.
d) it reveals important statistics.
the answer is c - it shows the writer's credibility. i just took the test

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.

gold miners!

explanation:

the sample answer on e2020

conflicting values are demonstrated between two different groups in animal farm. first, the farm animals value hard work. this is shown by them working late and working long hours at the request of the pigs. napoleon and the pigs, however, sleep late daily. furthermore, the animals value equality. this differs from the value of napoleon and the other pigs. instead of equality, they value only gaining power and maintaining their own privilege, which is demonstrated by their taking extra milk and sleeping in beds.