Graph the Function Over a One-Period Interval $\mathrm { I } = 24 \sin 14 \pi \mathrm { t }$

Multiple Choice

Graph the function over a one-period interval.
-A generator produces an alternating current according to the equation $\mathrm { I } = 24 \sin 14 \pi \mathrm { t }$ , where $\mathrm { t }$ is time in seconds and I is the current in amperes. What is the smallest time $t$ such that $\mathrm { I } = 12 ?$

A) $\frac { 1 } { 84 } \sec$

B) $\frac { 1 } { 28 } \mathrm { sec }$

C) $\frac { 1 } { 56 } \mathrm { sec }$

D) $\frac { 1 } { 42 } \mathrm { sec }$