Subject: mathqa
Question: m and n are the x and y coordinates , respectively , of a point in the coordinate plane . if the points ( m , n ) and ( m + p , n + 12 ) both lie on the line defined by the equation x = ( y / 4 ) - ( 2 / 5 ) , what is the value of p ?
Option: 
A: 2
B: 5
C: 4
D: 3
Answer: D