Perform the Operation and Write the Result in Standard Form $- 8 x \left( 8 - 7 x ^ { 4 } \right)$

Multiple Choice

Perform the operation and write the result in standard form. $- 8 x \left( 8 - 7 x ^ { 4 } \right)$

A) $56 x ^ { 5 } - 64 x$
B) $- 56 x ^ { 5 } - 64 x$
C) $- 64 x + 56 x ^ { 4 }$
D) $- 64 + 56 x ^ { 4 }$
E) $- 64 - 56 x ^ { 4 }$