Factor the Binomial Completely $50 x ^ { 2 } y - 98 y$

Multiple Choice

Factor the binomial completely.
- $50 x ^ { 2 } y - 98 y$

A) prime
B) $2 y ( 5 x + 7 ) ( 5 x - 7 )$
C) $2 y ( 5 x - 7 ) ^ { 2 }$
D) $2 y ( 5 x + 7 ) ^ { 2 }$