HELP!!!! URGENT!!!!

The following question has two parts. First, answer Part A. Then, answer Part B.

Part A
What is the meaning of the phrase swallowed the bait as it is used in this sentence from The Humbugs of the World?
"I was ready to burst with laughter to see how readily Adams swallowed the bait, but maintaining the most rigid gravity, I replied." (paragraph 9)

A. changed one's mind
B. made up a story
C. got unusually excited about something D. believed something that wasn't true

Part B

What does Barnum's use of the phrase swallowed the bait suggest about how he views Adams?

A. He thinks Adams is easily fooled.
B. He thinks Adams looks hungry.
C. He thinks Adams is greedy.
D. He thinks Adams is annoying.​