Final answer:
The ginger ale and raspberry juice are compared in a ratio of 2 parts ginger ale to 3 parts raspberry juice.
Step-by-step explanation:
The ginger ale and raspberry juice are compared in a ratio of 2 parts ginger ale to 3 parts raspberry juice. This means that for every 2 parts of ginger ale, there are 3 parts of raspberry juice.
For example, if you have 4 parts of ginger ale, you would need 6 parts of raspberry juice. If you have 6 parts of ginger ale, you would need 9 parts of raspberry juice.
Therefore, the correct comparison is 2 parts ginger ale to 3 parts raspberry juice.