Consider the function f(x) = x^3 + 4x^2 + 1. Find the equation of the normal line at the point (-1,4).
Options:
A) y = -5x - 1
B) y = (1/5)x - (19/5)
C) y = (1/5)x + (21/5)
D) y = 5x + 9
Note: The unnecessary space and words have been removed.