Factor the Sum of Cubes $125 u ^ { 3 } + 1$

Multiple Choice

Factor the sum of cubes. $125 u ^ { 3 } + 1$

A) $( 5 u - 1 ) \left( 25 u ^ { 2 } + 5 u + 1 \right)$
B) $( 5 u + 1 ) \left( 25 u ^ { 2 } - 5 u + 1 \right)$
C) $( 5 u - 1 ) \left( 25 u ^ { 2 } - 5 u + 1 \right)$
D) $( 5 u + 1 ) \left( 25 u ^ { 2 } + 5 u - 1 \right)$
E) $( 5 u + 1 ) \left( 25 u ^ { 2 } + 5 u + 1 \right)$