Verb is a figure of speech that does action. In addition, a complete verb can include adverbials and prepositions. In this example, the action word is 'go'. But if we are talking about the complete verb, the answer should be 'will often go". This phrase altogether gives Sue not only an action, but also the frequency of the action.
If you could attach the passage, I would be able to help you out more
I believe A and D are correct. The mood is set at the beginning of the story, and the climax and resolution occur later.
