The answer is D because when the speaker states, In my opinion, I think lemonade pudding is delicious, 'In my opinion' is optional and the speaker should've said, I think lemonade pudding is delicious.
I feel that there is a misunderstanding in the third paragraph of the essay. The writer talks about thesentence structure of the story and tries to tie that in with the topic of “suspense”. If the writer’s intentions