Read this excerpt from Chapter 1 of The Hobbit, where Bilbo speaks to Thorin, "Well, I should say that you ought to go East and have a look round. After all there is the Side-door, and dragons must sleep sometimes, I suppose. If you sit on the doorstep long enough, I daresay you will think of something."

What does this interaction between Bilbo and Thorin reveal about Bilbo?

Bilbo knows the castle and dragon well.

Bilbo believes the dwarves can handle the dragon on their own.

Bilbo wants to help plan the expedition.

Bilbo is having second thoughts about participating in the expedition.<this is the correct answer