How many cups are in one liter?

One liter is equivalent to approximately 4.2 cups. This is based on the standard conversion where 1 cup is equal to about 237 milliliters, and since 1 liter is 1000 milliliters, dividing 1000 by 237 gives a result that approximates 4.2 cups. This understanding of metric and standard measurement conversions is important for various tasks, especially in cooking and science-related fields where precise measurements are crucial. The other choices do not accurately reflect this conversion and thus fall short of the exact value needed in this context.