Use the Product Rule to Simplify $x ^ { 5 } \cdot x ^ { 11 }$

Use the product rule to simplify. Write the results using exponents.
- $x ^ { 5 } \cdot x ^ { 11 }$

A) $x ^ { 55 }$
B) $x ^ { 16 }$
C) $2 x ^ { 55 }$
D) $2 x ^ { 16 }$