C
If you plug in the values in that equation, it works.
Answer: none of them is right, did you meant maximum 4 and minimum 2?
Step-by-step explanation: cos x gets values between 1 and -1.
If you add 3 you get values between 4 and 2.
14.1% of 278 is 39.2. So 39.2 megabytes have been downloaded.