The correct answer is B. nonsense.
The word “balderdash” is a synonym for nonsense. It is a word used to describe something that is foolish, stupid, or meaningless. In the context of the question, the speaker is saying that most movies are not very good and that they are all the same. They are all just nonsense.
The other options are not as good fits for the question. Option A, adventure, is a genre of fiction that typically involves a protagonist who goes on a journey to overcome a challenge or obstacle. Option C, thriller, is a genre of fiction that typically involves a suspenseful plot and a dangerous situation. Option D, romance, is a genre of fiction that typically involves a love story.
While all of these genres can be found in movies, they are not what the speaker is talking about in the question. The speaker is not saying that movies are all the same genre. They are saying that movies are all the same in terms of quality. They are all just nonsense.