It takes 3.5 minutes to upload 12 photographs from a smart phone to a computer and then an additional 1.25 minutes to upload the photographs to a website. At this rate, about how long will it take to upload 20 photographs from a smart phone to a computer and then to a website?

A. about 7.2 minutes
B. about 5.8 minutes
C. about 2.1 minutes
D. about 7.9 minutes