Find the Values of the Variables for Which the Statement

Find the values of the variables for which the statement is true, if possible.
- $\left[ \begin{array} { r r r } a & 5 & 3 \\ - 7 & 3 & f \end{array} \right] + \left[ \begin{array} { r r r } - 3 & b & 8 \\ d & - 4 & - 6 \end{array} \right] = \left[ \begin{array} { r r r } 6 & - 3 & c \\ 6 & e & 6 \end{array} \right]$

A) $a = - 2 ; b = - \frac { 3 } { 5 } ; c = - 9 ; d = - \frac { 6 } { 7 } ; e = - 12 ; f = - 1$
B) $a = - 9 ; b = 8 ; c = - 5 ; d = - 13 ; e = - 7 ; f = - 12$
C) $a = 3 ; b = 2 ; c = 5 ; d = - 1 ; e = 7 ; f = 0$
D) $a = 9 ; b = - 8 ; c = 11 ; d = 13 ; e = - 1 ; f = 12$