Factor Completely Using the Grouping Method to Factor Trinomials $10 y ^ { 2 } + 21 y + 9$

Multiple Choice

Factor completely using the grouping method to factor trinomials. If unfactorable, indicate that the polynomial is prime.
- $10 y ^ { 2 } + 21 y + 9$

A) $( 2 y + 3 ) ( 5 y + 3 )$
B) $( 2 y - 3 ) ( 5 y - 3 )$
C) prime
D) $( 10 y + 3 ) ( y + 3 )$