To determine how many cups are in four gallons, we can use the fact that there are 16 cups in one gallon. Therefore, for four gallons, we calculate:
\[ \text{Cups in 4 gallons} = 4 \times 16 \]
Now let's evaluate the given options:
A. \(16 + 4\) -> This does not correctly represent the calculation for cups in four gallons. B. \(16 \div 4\) -> This does not represent the calculation for cups in four gallons. C. \(4 \times 16\) -> This correctly represents the calculation for cups in four gallons. D. \(16 \times 4\) -> This is mathematically equivalent to \(4 \times 16\) and also correctly represents the calculation for cups in four gallons. E. \(16 + 16 + 16 + 16\) -> This adds 16 four times, which totals 64 cups, thus it also correctly represents the calculation for cups in four gallons.
The correct answers are C, D, and E.