Two web servers were used to host an online game. The game became very popular, and the number of users increased very fast. By the 10th day after the game's release, both servers are working close to capacity. Consider the number of users on those two servers as a function of number of days. Should you choose an exponential model or a logistic model as a function of best fit? Why?

A. An exponential function should be used because the number of users will keep growing.
B. A logistic function should be used because there is a maximum capacity on those servers.