The correct answer is option C
Hermione Granger went to the Yule Ball with Victor Krum. The Yule Ball was opened only to students in their fourth grade and above, the event took place on Christmas day. Victor Krum was attracted to Hermione because she was the only girl at the ball that was not interested in impressing him and was careless about his status as a Bulgarian bon-bon this made victor attracted to her.
He saw beyond the Hermione people knew and judged, he understood her pain and was with her during the ball. Hermione spent the whole time teaching victor how to pronounce her name.