Use the Formula $s = r \omega t$ To Find the Value of the Missing Variable

Use the formula $s = r \omega t$ to find the value of the missing variable. Give an exact answer.
- $\mathrm { s } = \frac { \pi } { 3 } \mathrm {~m} , \mathrm { r } = 5 \mathrm {~m} , \mathrm { t } = 16 \mathrm { sec }$

A) $240 \pi$ radians per sec
B) $\frac { \pi } { 240 }$ radian per sec
C) $\frac { 16 \pi } { 15 }$ radian per sec
D) $\frac { 15 \pi } { 16 }$ radians per sec