Answer: B) He was used to being made fun of.
Explanation: In the given passage we can see a conversation between Piggy and another boy, about whether or not he was going to swim. Piggy explains that he can't because he has asthma, and the other boy makes fun of him. The fact that Piggy bore the insult with humble patience, instead of defending himself, makes us infer that Piggy is used to being made fun of, so the correct answer is option B.