To compare the ginger ale and raspberry juice based on the ingredients given, we have:
- Ginger Ale: 2 parts
- Raspberry Juice: 3 parts
This means that for every batch of raspberry punch, the ratio of ginger ale to raspberry juice is 2 parts ginger ale to 3 parts raspberry juice.
Therefore, the correct description is:
2 parts ginger ale to 3 parts raspberry juice.