Use the Laws of Exponents to Simplify Each Expression Using $$\left. (- 10 x ^ { 5 } y \right) \left( - 2 x ^ { 4 } y ^ { 2 } \right)$$

Multiple Choice

Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.
- $$\left. (- 10 x ^ { 5 } y \right) \left( - 2 x ^ { 4 } y ^ { 2 } \right)$$

A) $20 x ^ { 9 } y ^ { 3 }$
B) $20 x ^ { 20 } y ^ { 2 }$
C) $- 12 x ^ { 9 } y ^ { 2 }$
D) $- 20 x ^ { 9 } y ^ { 2 }$