A. on average, 10 interaction steps an hour, or one every six minutes,

B. on average, 120 interaction steps an hour, or one every 30 seconds

C. on average, 20 interaction steps an hour, or one every six minutes,

D. on average, 20 interaction steps an hour, or one every six minutes,

E. an average of 360 interaction steps an hour, or one every 10 seconds.

F. on average, 10 interaction steps an hour, or one every six minutes,

G. on average, 100 interaction steps an hour, or one every 30 seconds

H. on average, 100 interaction steps an hour, or one every 30 seconds

I. an average of 360 interaction steps an hour, or one every 10 seconds.

J. an average of 360 interaction steps an hour, or one every 10 seconds.

K. an average of 360 interaction steps an hour, or one every 10 seconds.

L. on average, 120 interaction steps an hour, or one every 30 seconds