Two Neighbouring High Schools Have Been Feuding Since the Annual

Two neighbouring high schools have been feuding since the annual football game ended in a tie.The principals of the schools decide that the tension may subside if the two schools participate in joint activities,such as assemblies that would allow the students to hear a local band.Why is this strategy most likely to be ineffective?

A) because the two groups have equal status
B) because the students at the two schools know each other too well
C) because the students at the two schools are unlikely to have personal contact
D) because the principals have established the wrong social norm