2021 Gauss 8 Problem 6

A water fountain flows at a steady rate of 500 mL every 6 seconds. At this rate, how long will it take to fill a 250 mL bottle?

\textbf{(A)}\ 2 \text{ s}\quad \textbf{(B)}\ 9 \text{ s}\quad \textbf{(C)}\ 3 \text{ s}\quad \textbf{(D)}\ 6 \text{ s}\quad \textbf{(E)}\ 1 \text{ s}

If there are no answer choices shown, enter a numerical answer.

Full credit to this problem is given to the CEMC, you may view all Gauss contests here.