I believe the answer is C because if you looking for dog pictures and end up looking at cat pictures you went off topic, since you went to look at dog pictures. Its the same when you go looking for research on a topic.
The answer is 3. when creating a logistical argument, you state the idea that you are going against, and then you back yourself up on why you chose the opposing side.
what is on the front of the page?
She does not like sweets.
Does she likes sweets?
He is going to study.
Is he going to study?
She is going to school.
Is he going to school?