Multiply, and Then Simplify If Possible $4 \sqrt { 7 } ( \sqrt { 11 } + \sqrt { 7 } )$

Multiple Choice

Multiply, and then simplify if possible. Assume all variables represent positive real numbers.
- $4 \sqrt { 7 } ( \sqrt { 11 } + \sqrt { 7 } )$

A) $4 \sqrt { 11 } + 7$
B) $4 \sqrt { 77 } + 7$
C) $28 \sqrt { 11 } + 28$
D) $4 \sqrt { 77 } + 28$