I have more i don't understand??

Use the distributive property of multiplication over addition to rewrite the sum as a product of two factors, where one of
the factors is a sum.
14) 6yz - 54y
A) 6y(z - 9)
B) 6y(z - 54)
C) 6y(z + 9)
D) 9y(z - 6)
explain