Elizabeth Manages Two Workers,Shane and Ernie,who Are Always Arguing with Each

Elizabeth manages two workers,Shane and Ernie,who are always arguing with each other.They both get along well with other employees.Elizabeth has tried to get them to understand each other better,but the conflicts keep occurring.Elizabeth should:

A) Send them to diversity training
B) Have them trade jobs
C) Transfer one of them to another part of the organization
D) Fire them both
E) Ignore the situation