An app developer is trying to determine how much time it takes, in seconds, after an app is clicked on, for the app to open. A very large sample of adults is asked to open the app, and the amount of time it takes for the app to open upon clicking it is measured for each adult. It turns out that this variable, which we call "logon time," has a Normal distribution, with a mean of 5 seconds and a standard deviation of 1.5 seconds. According to the Empirical Rule, approximately 99.7% of the logon times are between

A. 2 seconds and 8 seconds.

B. 3.5 seconds and 6.5 seconds.

C. 4.8 seconds and 5.2 seconds.

D. 0.5 second and 9.5 seconds.

E. 0 second and 7 seconds.