Final answer:
Ethan bought the most amount with a total of 96 pens.
Step-by-step explanation:
In order to determine who bought the most amount, we need to calculate the total number of pencils and pens bought by Ethan. Ethan bought 4 packs of pencils, with each pack containing 8 pencils. So, the total number of pencils bought by Ethan is 4*8 = 32. Ethan also bought 4 packs of pens, with each pack holding 24 pens. So, the total number of pens bought by Ethan is 4*24 = 96. Therefore, Ethan bought the most amount with a total of 96 pens.