If you walk 1.4 km north and then 4.8 km east, what are the magnitude and direction of your resultant displacement? 
 A - magnitude: 5 km; direction: 16.3° east of north 
 B - magnitude: 5 km; direction: 73.7° east of north 
 C - magnitude: 4.6 km; direction: 73.7° east of north 
 D - magnitude: 4.6 km; direction: 16.3° east of north