Please help me, I'm so confused! 20 points please help this question is on The Hobbit novel

Which statement best reflects Bilbo’s achievement at the Elvenking’s castle?
“Then they drank once round and became mighty merry all of a sudden.”

"She'll be coming around the mountain when she comes."

“Then he went off from door to door until his following had grown to twelve.”

“First he unlocked Balin’s door, and locked it again carefully as soon as the dwarf was outside.”