Hello there, your answer would be the last one, or 48!
Let's start by listing some multiples of 8 and seeing which one is listed in the options below.
Multiples of 8: 8 16, 24, 32, 40, 48, 56, 64, 72, 80...
So now let's look at the answer choices again.
18 - Not a multiple of 8.
22 - Not a multiple of 8.
30 - Not a multiple of 8.
48 - This is a multiple of 8.
So, the last option, or 48 would be the correct answer. I hope this helps and have a great day! :)