Explanation:
The relationship between the Rockies and the Appalachians can be described as a relationship of similarity or comparison. The Rockies and Appalachians are both mountain ranges located in North America.

The correct answer for the analogy "Rockies : Appalachians :: Andes : ?" is "Ranges" because the Andes are also a mountain range.

Explanation of the analogy:
To understand the analogy, let's break it down:

- Rockies : Appalachians: The Rockies and the Appalachians are two distinct mountain ranges in North America. The Rockies are located in the western part of North America, spanning from Canada to the United States, while the Appalachians are located in the eastern part of North America, mainly in the United States.

- ::: This symbol indicates the analogy or comparison between the two sets of mountains.

- Andes : ?: We need to find the term that completes the analogy. The Andes is another famous mountain range located in South America, stretching along the western coast of the continent.

Identifying the correct answer:
Looking at the options provided:

a) Slopes: Slopes refer to the inclined surfaces of a mountain or hill. While the Andes do have slopes, this term does not capture the overall relationship between the Andes and the other mountain ranges mentioned.

b) Ranges: Ranges are a collection of mountains or hills that are connected or related. This term accurately describes the Andes as they are a mountain range, similar to the Rockies and the Appalachians. Therefore, "Ranges" is the correct answer.

c) Peaks: Peaks refer to the highest points of a mountain or hill. While the Andes do have many peaks, this term does not capture the overall relationship between the Andes and the other mountain ranges mentioned.

d) Hills: Hills are raised areas of land that are lower and less steep than mountains. The Andes are not hills, as they are much larger and more rugged than hills.

e) None of these: This option is incorrect because the correct answer is option B, "Ranges."

Therefore, the correct answer to the analogy "Rockies : Appalachians :: Andes : ?" is "Ranges."