If a bus drives 2 km due east, 5 km at 45" North of east, 4 km at 30" North of west, then 2 km due south, what is the bus's resultant displacement? O 7.3km, 59.6' North of east O 4 1km, 59.6' North of east O 4 1km, 59.6' South of east O 4.1km, 78.3' South of east