Factor, Using the Given Factor $$x ^ { 6 / 8 } + 3 x ^ { 5 / 8 } ; \quad x ^ { 5 / 8 }$$

Multiple Choice

Factor, using the given factor. Assume all variables represent positive real numbers.
- $$x ^ { 6 / 8 } + 3 x ^ { 5 / 8 } ; \quad x ^ { 5 / 8 }$$

A) $x 1 / 8 \left( x ^ { 6 / 8 } + 3 \right)$
B) $x ^ { 5 / 8 } \left( x ^ { 1 / 8 } + 3 \right)$
C) $x ^ { 1 / 8 } \left( x ^ { 1 / 8 } + 3 \right)$
D) $x ^ { 5 / 8 } \left( x ^ { - 1 / 8 } + 3 \right)$