PLS HELP ITS FOR A UNIT TEST Based on the data, which campaign strategy would be most successful in congressional races?

A) Challengers should highlight how ineffective the incumbent is at bringing pork-barrel spending to the district.
B) Challengers should campaign with representatives from other districts to highlight their ability to work with current members.
C) Incumbents should highlight programs within the district while avoiding appearing heavily connected to Congress in general.
D) Incumbents should campaign by emphasizing their membership in the party that currently controls Congress, which should stay on its current path.