Find the Angle at Which the Parabolas Y² = 4x

Multiple Choice

Find the angle at which the parabolas y² = 4x + 4 and y² = -6x + 9 intersect at each of their intersection points.

A) 90º at each intersection point
B) 120º at each intersection point
C) 60º at each intersection point
D) 75º at each intersection point
E) 50º at each intersection point