This is a complex sentence it includes a subordinate clause (one that CANNOT stand by itself), and a dependent clause. You can tell this because if I were to walk into a room and say, "When K and C read the same foldable....", you would be waiting to hear the rest, wouldn't you? A compound sentence has two independent clauses joined by a comma and a coordinating conjunction (but, and, for, nor, or, so, yet). A simple sentence is just an independent clause.
A. Take notes as you read.
This is D, 'direct object'. Because you can ask the question used for direct objects - what- (I don't know - what? - why I said that).
Answer:
He would react to it in a negative way. This is because he would have seen the unjust treatment meted out onTom Robinson.
He would also have been disappointed in the community for only judging him because of his skin color which is a form of biased treatment and very wrong in all shades and forms.