Choose the One Alternative That Best Completes the Statement or Answers

Choose the one alternative that best completes the statement or answers the question.
-A plane is headed due south with an airspeed of 210 miles per hour. A wind from a direction of $\mathrm { S } 30 ^ { \circ } \mathrm { W }$ is blowing at 20 miles per hour. Find the groundspeed and resulting direction of the plane, rounded to the nearest whole number.

A) $211 \mathrm { mph } ; \mathrm { S } 15 ^ { \circ } \mathrm { W }$
B) $201 \mathrm { mph } ; \mathrm { S } ^ { \circ } \mathrm { E }$
C) $193 \mathrm { mph } ; \mathrm { S } ^ { \circ } \mathrm { E }$
D) $193 \mathrm { mph } ; \mathrm { S } ^ { \circ } \mathrm { W }$