GIVEN:True course ..............................330°Variation ................................15° EIndicated airspeed .......................160 ktsAmbient temperature ......................-10 °CPressure altitude ........................4,500 ftForecast wind ............................090° at 25 ktsUnder these conditions, the magnetic heading and groundspeed would be approximately
A. 323° and 177 knots.
B. 332° and 166 knots.
C. 340° and 177 knots.