Which of the Following Primarily Depends Upon Comparative Reasoning

Multiple Choice

Which of the following primarily depends upon comparative reasoning?

A) Randolph knows that John Glenn was a senator. John Glenn was an astronaut. Therefore Randolph knows that John Glenn was an astronaut.
B) The animal rights activists defended themselves by saying: "We did not steal any animals from the lab. We rescued those monkeys because they were the helpless victims of torture."
C) Everyone loves ice cream. Children love ice cream. So, everyone's a child.
D) Either we'll study together tonight for tomorrow's exam, or we will both blow it off. I'm too tired to study tonight. So, we're going to blow it off.