Find the Reference Number For $t = - \frac { 22 \pi } { 3 }$

Multiple Choice

Find the reference number for $t = - \frac { 22 \pi } { 3 }$

A) $\bar { t } = \frac { \pi } { 6 }$
B) $\bar { t } = - \frac { 7 \pi } { 6 }$
C) $\bar { t } = \frac { \pi } { 3 }$
D) $\bar { t } = - \frac { \pi } { 3 }$
E) $\bar { t } = 7 \pi$