Solve the Formula for the Specified Variable $I = \operatorname { Pr } t \text { for } t$

Multiple Choice

Solve the formula for the specified variable. $I = \operatorname { Pr } t \text { for } t$

A) $t = \frac { I r } { P }$
B) $t = \frac { I } { P _ { r } }$
C) $= \frac { I P } { r }$
D) $t = \frac { r } { I P }$
E) $t = \frac { P r } { I }$