To convert milliliters to liters using the conversion ratio where 1 liter equals 1,000 milliliters, you can set up a proportion or simply divide the volume in milliliters by 1,000.
Given:
- The cylinder holds 6,750 milliliters.
Now, perform the conversion:
\[ \text{Liters} = \frac{\text{Milliliters}}{1,000} = \frac{6,750 \text{ mL}}{1,000} = 6.75 \text{ L} \]
So, the cylinder holds 6.75 liters.
The correct answer is: A. 6.75