To solve this take not Emily believes 8 cloves in every 500ml of sauce is perfect. Now take note raphael's sauce is 12 cloves for every 900 ml.
First divide 500 by 8
500/8= 62.5
So Emily believes every 62.5 ML needs a clove of garlic.
Now divide 900 by 12
900/12=75
Raphael's sauce has one clove of garlic for every 75 ml.
So the answer is A. It's too garlicky!