Solve the Problem
-Let Angle $\mathrm { POQ }$ Be Designated $\theta$

Multiple Choice

Solve the problem
-Let angle $\mathrm { POQ }$ be designated $\theta$ . Angles $\mathrm { PQR }$ and VRQ are right angles. If $\theta = 70 ^ { \circ }$ , find the length of $\mathrm { OQ }$ accurate to four decimal places.

A) $0.9397$
B) $0.3420$
C) $2.7475$
D) $2.9238$