Defining U as the Unemployment Rate And $\bar { u }$

Multiple Choice

Defining u as the unemployment rate and $\bar { u }$ as the natural rate of unemployment, Okun's law is given by the following equation:

A) $\tilde { Y } = \frac { u } { \overline { \bar { u } } }$
B) $\tilde { Y } = - 2 \times ( u - \bar { u } )$
C) $\tilde { Y } = 2 \times ( u - \bar { u } )$
D) $\tilde { Y } = - 2 \times \bar { u }$
E) $\tilde { Y } = - 2 \times u$