Here is an instance of a relation R(A,B,C,D):

A	B	C	D
1	2	3	7
1	2	3	8
4	2	5	7
4	2	5	8

Consider the following three multivalued dependencies:

(1) AB C, (2) CD A, (3) D C

The following (M,n) pairs say that to satisfy multivalued dependency M (M=1, M=2, or M=3), a minimum of n tuples must be added to the given instance of R. Only one such pair is correct; which one? I actually already found the answer on Chegg, however I'm not sure how it was solved. If anyone could show me how to solve it that would be swell thank you!