Factor the Trinomial, If Possible $162 m ^ { 2 } + 252 m n + 98 n ^ { 2 }$

Multiple Choice

Factor the trinomial, if possible.
- $162 m ^ { 2 } + 252 m n + 98 n ^ { 2 }$

A) $2 ( 9 m + 7 n ) ^ { 2 }$
B) $( 18 m - 2 n ) ^ { 2 }$
C) $( 18 m + 14 n ) ^ { 2 }$
D) $2 ( 9 m - 7 n ) ^ { 2 }$