During registration at a university, 170 students took advantage of the online system to sign up for classes. Sixty-two students took 20 minutes to register; 87 took 35 minutes to register; and, 21 students took 50 minutes to register. To the nearest minute, find and interpret the mean of the data.

A) The amount of time a student spent online to register was about 48 minutes.

B) The amount of time a student spent online to register was about 31 minutes.

C) The amount of time a student spent online to register was exactly 35 minutes.

D) The amount of time a student spent online to register was more than 42 minutes.