In a class of 28 students, 11% of them own a PS4 game system.

a.) What is the exact value that is 11% of 28? 

b.) Could the result from part (a) be the actual number of students who own a PS4? 

A. No, because the actual value must have a remainder 

B. No, because the actual value must be a whole number 

C. Yes, because the actual value is close to half the population 

D. Yes, because the actual value is significant 

c.) What is the actual number of students who own a PS4? 

d.) Among the 28 students, 5 of them say they own an XBOX One game system. What percentage is that? (round to the nearest percent)