Find the Missing Monomial, Factor or Term $$( 8 x + 1 ) \cdot ? = 64 x ^ { 2 } - 1$$

Multiple Choice

Find the missing monomial, factor or term.
- $$( 8 x + 1 ) \cdot ? = 64 x ^ { 2 } - 1$$

A) $8 x + 8$
B) $x - 1$
C) $8 x - 1$
D) $8 x + 1$