Question

the largest freshwater reservoir is
oceans
rivers and lakes
ice caps and glaciers
the atmosphere

Explanation:

To determine the largest freshwater reservoir, we analyze each option: Oceans contain mostly saltwater, so they are not a freshwater reservoir. Rivers and lakes have freshwater but in smaller quantities compared to ice caps and glaciers. The atmosphere has a very small amount of water vapor as freshwater. Ice caps and glaciers hold about 68.7% of the world's freshwater, making them the largest freshwater reservoir.

Answer:

C. Ice caps and glaciers