Here's a problem to solve: The water cycle describes the movement of the water of Earth. About 96% of the water of Earth is the salt water found in the oceans while the remaining 4% is fresh water. Where would the majority of the freshwater on Earth be found?

Among the 4 following options, which is the correct answer?

- A: groundwater and aquifers
 
- B: swamps and wetlands
 
- C: ice caps and glaciers
 
- D: lakes and rivers
 