Actually, I think the answer is D. Only because the indicated part of B is "except when we get to read shakespear!" And that cant be the main clause because its dependant. In D it's "my dad says he doesn't want to move." And that's an independent clause in a complex sentence.
Answer: it’s D
Explanation: taking the quiz rn
The author ends the story with Grace's recollection that Abraham Lincoln "seemed so very kind but looks so very sad" was to portray that to support the characterization of Lincoln as a great man who faced difficult situations. At this time, Lincoln, throughout the ends of his life, suffered "Great Depression" where people around him, always said that he was like a walking melancholy