Answer & Explanation
Yard is to Inch as Quart is to Ounce.
Because Yard and Inch are units of measurement Where Yard is larger than Inch i.e, 1 Yard = 36 Inches.
So, here Quart and Ounce are also units of measurement where Quart is larger than Ounce i.e, 1 Quart = 32 Ounces.
Gallon is not correct because Gallon is larger than Quart and Milk and Liquid are not units of measurement.
So, Ounce is correct.