Write the Expression with Only Positive Exponents and Evaluate If $$\frac { 1 } { 4 } ( 16 y + 16 x + 8 z )$$

Multiple Choice

Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real numbers.
- $$\frac { 1 } { 4 } ( 16 y + 16 x + 8 z )$$

A) 4y + 4x + 2z
B) 4y + 4x - 2z
C) 4y - 4x + 2z
D) 4y - 4x - 2z