Peter and Paul Have Discussions That Typically Sound Like This

Multiple Choice

Peter and Paul have discussions that typically sound like this: "Where do we go for dinner?" "I don't know;where would you like to go?" "I don't care,you decide." "Anything you like is fine with me." etc.Based on this example their relationship would be characterized as being

A) complementary.
B) symmetrical.
C) parallel.
D) unilateral.