If Possible, Factor the Polynomial Completely $$r ^ { 2 } + 10 r + 25$$

Multiple Choice

If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.
- $$r ^ { 2 } + 10 r + 25$$

A) $( r + 5 ) ( r - 5 )$
B) $( r - 5 ) ^ { 2 }$
C) $( \mathrm { r } + 5 ) ^ { 2 }$
D) $( r + 10 ) ( r - 10 )$