After calculating, we find that Craig biked an average of 21.8 miles per day, while Rel biked 23.6 miles per day. Thus, Craig biked fewer miles each day than Rel.
To determine who biked the lower number of miles each day, we need to calculate the average miles Craig biked per day based on the given data. To find Craig’s average, we divide the total miles he biked by the number of day trips. The calculations for Craig’s average miles per day are as follows: 43.6 miles/2 days = 21.8 miles/day, 65.4 miles/3 days = 21.8 miles/day, and 87.2 miles/4 days = 21.8 miles/day. As Craig biked 21.8 miles per day and Rel biked 23.6 miles per day, Craig biked the lower number of miles each day.
So, Craig biked fewer miles per day than Rel, making option D the correct answer.