The correct answer is 8.

Solution:

We need to find the quotient when 40 is divided by 5.
40 ÷ 5 = ?
We use multiplication facts to find the quotient.
We find a number which when multiplied by 5 gives 40.
Using multiplication fact, we have:
5 × 8 = 40
By comparing this multiplication fact with the given division sentence, we have:
40 ÷ 5 = 8
So, the correct answer is 8.