Question 4 2 pts Consider a relation R(A) with r tuples, all unique within Rand a relation S(A) with s tuples, all unique within S. Lett represents the number of tuples in Rminus S. Which of the following triples of values (r.s,t) is possible? (10,13,8) (10,5,2) (5,10,15) (5,10,-5)