Write the Expression with Only Positive Exponents and Evaluate If $$\left( \frac { 1 } { 3 } y \right) ( - 15 )$$

Multiple Choice

Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real
numbers.
- $$\left( \frac { 1 } { 3 } y \right) ( - 15 )$$

A) $4 y$
B) $3 y$
C) $- 5 y$
D) $5 \mathrm { y }$