A cyclist is traveling southeast along a road at 17.1 km/h. Relative to the cyclist, the wind blows from the southwest (so that the air moves northeast) at a speed of 27.3 km/h. What is the resultant velocity of the cyclist?
a) 10.2 km/h southeast
b) 44.4 km/h southeast
c) 44.4 km/h southwest
d) 10.2 km/h northeast