Question

What is a counterexample for the conjecture?

Conjecture: Any number that is divisible by 4 is also divisible by 8.

Choices:
o 24
o 40
o 12
o 26

I know that 24 and 40 are both divisible by 4 and 8.
I also know that 12 is not divisible by 8, but is divisible by 4. However, 26 is not divisibly by 4 and 8.
I think the correct answer is 12, but am I correct? Are they looking for 26 instead?