Use the Formula $$\omega = \frac { \theta } { t }$$

Use the formula $$\omega = \frac { \theta } { t }$$ to find the value of the missing variable. Give an exact answer unless otherwise indicated.
- $\theta = \frac { \pi } { 2 }$ radian, $t = 13 \mathrm { sec }$

A) $\frac { 13 \pi } { 2 }$ radians per sec
B) $\frac { \pi } { 26 }$ radian per sec
C) $\frac { 26 } { \pi }$ radians per sec
D) $\frac { 2 \pi } { 13 }$ radians per sec