Provide an appropriate response.Suppose that A is an m × n matrix and B is a p × q matrix. Under what condition(s) can the product AB be found? Under what condition(s) can the product BA be found?
A. AB can be found if m = p;
BA can be found if n = q.
B. AB can be found if m = q and n = q;
BA can be found under the same conditions.
C. AB can be found if q = m;
BA can be found if n = p.
D. AB can be found if n = p;
BA can be found if q = m.
Answer: D
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