Ratios

Can someone explain this to me? I am not getting it can't help my kid with it.  We divided down and the rations are different. Need help:

Emily thinks the perfect tomato sauce has 8 cloves of garlic in every 500 ml of sauce. Raphael's tomato sauce has 12 cloves of garlic for e very 900 ml sauce. 

What will emily think of his sauce?

a: too garlicky

b. it is not garlicky enough

c. it is perfect.