Final answer:
Jefrin can make 3/4 of a pie in 15 minutes. Since there are four 15-minute segments in an hour, he can make 3 pies in one hour. The correct option is c.
Step-by-step explanation:
You're learning about proportions and rates, which are very common mathematical concepts. Jefrin can make 3/4 of a pie in 15 minutes. To find out how many pies he can make in an hour, we need to figure out how many 15-minute segments there are in an hour. An hour is 60 minutes long, so there are 60/15 = 4 segments of 15 minutes in an hour.
Since Jefrin makes 3/4 of a pie in one segment (15 minutes), in four segments (1 hour) he will make 4 * (3/4) pies. Calculating this gives us 3 pies. Therefore, the correct answer is C. 3 pies. The correct option is c.