Differentiate between a policy of imperialism and annexation

Which fact would this be, and how might you verify the truth?

Pl hell mafter the civil war which president was called a "carpetbagger"? a. lincolnb. johnsonb. grant

Synthesizing new ideas from a speaker with what one already knows about the subject to see if the information makes sense is an example of a. questioning and challenging b. identifying differences c. forming a statement d. seeing the boader context