Factor, Using the Given Factor $8 s ^ { 2 / 7 } - 3 s ^ { - 4 / 7 } ; \quad s ^ { - 4 / 7 }$

Multiple Choice

Factor, using the given factor. Assume all variables represent positive real numbers.
- $8 s ^ { 2 / 7 } - 3 s ^ { - 4 / 7 } ; \quad s ^ { - 4 / 7 }$

A) $s ^ { - 4 / 7 } \left( 8 s ^ { 6 / 7 } - 3 s \right)$
B) $s ^ { 1 / 3 } \left( 8 - 3 s ^ { 2 / 1 } \right)$
C) $s ^ { 2 / 7 } \left( 8 s ^ { 6 / 7 } - 3 ^ { 2 / 1 } \right)$
D) $s ^ { - 4 / 7 } \left( 8 s ^ { 6 / 7 } - 3 \right)$