Final answer:
One liter is most closely approximate to a quart, with 1 liter being approximately 1.06 quarts. An ounce is smaller and a gallon is larger than a liter, while two pints make up a quart. The correct option is c.
Step-by-step explanation:
When comparing a liter to other units of liquid volume, it is most closely approximate to a quart.
In the conversion of units, a liter is slightly more than a quart (1 liter is approximately 1.06 quarts), whereas an ounce is a much smaller unit of volume, and a gallon is much larger, with a gallon being equal to 4 quarts.
A pint is smaller than a liter as well, with 2 pints making up a quart. Therefore, the correct answer is that one liter is about a quart (c).