Explanation:
First we eliminate any answers that can't be the answer.
2) can be eliminated because it implies subtraction instead of multiplication. Same with 4).
Now it is narrowed down to 1) and 3).
1) it is 3 times smaller than 9
3) it is 3 times as much as 9
It is not 1). The keywords 'times smaller' implies division.
So the answer is 3).
Hope it helps!