Which Statement Best Explains John Kennedy's Decision to Select Lyndon

Which statement best explains John Kennedy's decision to select Lyndon Johnson as his running mate in 1960?

A) He was attempting to provide geographic balance to the ticket, since Johnson was from Texas and Kennedy was from Massachusetts.
B) It was an attempt to provide political balance to the ticket, since Johnson was a senator and Kennedy was a senator.
C) He was trying to provide personality balance to the ticket, since Johnson was more charismatic than Kennedy.
D) It was an attempt to provide religious balance to the ticket, since Johnson was a protestant and Kennedy was a Catholic.