Differentiate the Given Function $$y = 20 - 5 e ^ { - 0.03 x }$$

Multiple Choice

Differentiate the given function. $$y = 20 - 5 e ^ { - 0.03 x }$$

A) $- 5 e ^ { - 0.03 x }$
B) $0.15 e ^ { - 0.03 x }$
C) $- 0.15 e ^ { - 0.03 x }$
D) $5 e ^ { - 0.03 x }$