Which one of the following factors secured the reelection of president lincoln?

sherman's victory in atlanta
grant's capture of petersburg
jefferson davis' refusal to negotiate an end to the war

U have this same question on my lesson and my lesson says, "Sherman's stunning victory in Atlanta secured the election for Lincoln" so the answer is A. Sherman's victory in Atlanta

the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.

your answer would be (b)