As Part of an Exercise Program,a Woman Walks South at a Speed

As part of an exercise program,a woman walks south at a speed of 2.00 m/s for 60.0 minutes. She then turns around and walks north a distance 3000 m in 25.0 minutes
(a)What is the woman's average velocity during her entire motion?
A)0.824 m/s south
B)1.93 m/s south
C)2.00 m/s south
D)1.79 m/s south
E)800 m/s south
(b)What is the woman's average speed during her entire motion?
A)0.824 m/s
B)1.93 m/s
C)2.00 m/s
D)1.79 m/s
E)800 m/s