What is the correct way to measure 3/4 cup?

Measuring 3/4 cup can be effectively done by combining 1/2 cup with 1/4 cup. This method works because when you add these two quantities together, the result is exactly 3/4 cup. The 1/2 cup measures 2/4, and the 1/4 cup adds another 1/4, bringing the total to 3/4.

Other methods given in the options do not yield the correct total when combined in the same way. For instance, adding two 1/4 cups would sum to only 2/4, which is equivalent to 1/2 cup, while using two 1/2 cups would total 1 full cup, and combining two 3/8 cups would result in 6/8, which simplifies to 3/4 but does not utilize the standard cup measurements typically used in cooking. Hence, the first choice is the most straightforward and correct way to accurately measure 3/4 cup in a practical kitchen setting.