between / among

[curious]

You know political issues tend to strain intimate relationships
---- people.
A) between B) among C) between / among

Which do you do you think is correct? Can "between" be used when talking about people in general?

[Casiopea]

ABC . . . XYZ. Y is between X and Z. Two factors, X and Z, are involved. "between" refers to two, no more:

EX: You know political issues tend to strain intimate relationships between the two parties.

"among" refers to more than two,

EX: You know political issues tend to strain intimate relationships among the parties.