The topic sentence is, of course, a sentence where you state the main topic of your paper. You want people to know your topic as soon as possible. Therefore, answers A and D are obviously places you would most commonly put your topic sentence. However, you can also put it in your body of your paper. But the one place you never want to put your topic sentence is answer C, in your conclusion paragraph.
Answer:
A
Explanation:
A uses a past tense (rang) which is correct for a past tensed sentence
Mean while B uses a present tense (ringing) for a sentence which is past tensed, which makes no sense and is absolute non sense.
De rien... au revoir avec des baisers!
The answer is: C
hope this helps
Answer: i think he would be writing about the virus, or maybe his own life. i think he would work with/for himself