A General Exponential Demand Function Has the Form to Follow $q = A e ^ { - m q }$

Multiple Choice

A general exponential demand function has the form to follow. $q = A e ^ { - m q }$ (A, m - nonzero constants)

Obtain a formula for the elasticity of demand at a unit price of p.

A) $E = A m p$
B) $E = - A p$
C) $E = \frac { A p } { m }$
D) $E = - A e ^ { - m }$
E) $E = m p$