was amused that we 're going to an air transportation conference , and my travel buddy is totally afraid of flying . amused self by reading i know this much is true in its entirety , watching episodes of house , remembering that 21 is in fact a really awful movie , and sleeping .

Question: What is " I know this much is true " ?
Answer: None of the above choices .It is a saying and I liked thinking of it and reading it over and over on the plane .It is a novel .It is a game I play with my friends on the plane .