URGENT WILL GIVE BRAINLIEST IF CORRECT!!!!

Answer:
A could represent the volume of a full bottle of the hot sauce.
Step-by-step explanation:
If we say that a full bottle of hot sauce is 100 ml, 90% of that would be 90ml, meaning that x is 90ml.
In this scenario, (10/9)x would equal 100ml, so it has to be the answer.