Simplify the Expression Below by Combining Similar Terms $6 x ^ { 6 } - 11 x ^ { 6 } + 3 x ^ { 6 }$

Multiple Choice

Simplify the expression below by combining similar terms. $6 x ^ { 6 } - 11 x ^ { 6 } + 3 x ^ { 6 }$

A) $- 2 \cdot x ^ { 6 }$
B) $- 8 \cdot x ^ { 6 }$
C) $4 \cdot x$
D) $- 2 \cdot x ^ { 18 }$