Factor the Polynomial $$7 x ^ { 2 } z - 7 x z - 42 z$$

Multiple Choice

Factor the polynomial.
- $$7 x ^ { 2 } z - 7 x z - 42 z$$

A) $7 \mathrm { z } ( \mathrm { x } + 2 ) ( \mathrm { x } - 3 )$
B) $7 \mathrm { z } ( \mathrm { x } - 2 ) ( \mathrm { x } + 3 )$
C) $7 ( x z + 2 ) ( x z - 3 )$
D) prime polynomial