Use Any Method to Factor $x ^ { 2 } - 19 x - 20$

Multiple Choice

Use any method to factor $x ^ { 2 } - 19 x - 20$

A) $( x - 20 ) ( x - 1 )$
B) $( x - 5 ) ( x + 4 )$
C) $( x - 20 ) ( x + 1 )$
D) $( x + 5 ) ( x - 4 )$
E) $( x + 20 ) ( x - 1 )$