Answer:
(e).
Step-by-step explanation:
5A = [tex]\left[\begin{array}{ccc}5(-9)&5(-7)&5(7)\\5(5)&5(-1)&5(7)\end{array}\right][/tex]
4B = [tex]\left[\begin{array}{ccc}-28&28&24\\-4&28&24\end{array}\right][/tex]
5A - 4B = [tex]\left[\begin{array}{ccc}-17&-63&11\\29&-33&11\end{array}\right][/tex]
