Question

Which unit would you use to measure the capacity of a soda can?

Answer 1

You would use fluid ounces because you are measuring a liquid. There are other units you could use but measuring it in fluid ounces allow for a more accurate measurement because they are smaller
 
You would milliliters because they are smaller thus more accurate than liters

Answer 2

Fluid ounces, because soda is a fluid and on a pop can it says fluid ounces