Find All Integers B Such That the Trinomial $x ^ { 2 } + b x + 10$

Multiple Choice

Find all integers b such that the trinomial $x ^ { 2 } + b x + 10$ can be factored.

A) $\pm 7 , \pm 11$
B) 10,1
C) $\pm 2 , \pm 5$
D) -2,-5
E) -7,-11