Use the Process of Factoring by Grouping to Factor the Polynomial

Multiple Choice

Use the process of factoring by grouping to factor the polynomial. $7 x + 7 y + z x + z y$

A) $( x + y ) ( 7 + z )$
B) $( z + y ) ( 4 + x )$
C) $( z + y ) ( 7 + x )$
D) $( x + z ) ( 7 + y )$
E) $( x + z ) ( 4 + y )$