Anna, Irina, Avel, and Vlad are going on a road trip. The following table shows an incomplete probability model for who will be
driving during any given kilometer. Anna: 1/8
Irina: 3/8
Avel: ?
Vlad: 1/8
If the road trip involves 640km of driving, which of the following is the best prediction for the number of kilometers that Avel will drive?
A. 80
B. 160
C. 240
D. 320