Between two times, an athletic mouse moves to the right for an unknown distance and then to the left for 3.69m. Between these two times the mouse has an average speed of 1.85 m/s and an average velocity of 1.1 m/s.How much time elapsed between the two times?
a. 14.662 s
b. 9.840 s
c. 4.723 s
d. 11.710 s