Use the sentence to answer the question.
My friend is tall, whereas I am short.
Which kind of relationship is Sophia using to make an analogy in this sentence?
1. Sophia is using an antonym to make an analogy.
2. Sophia is using a synonym to make an analogy.
3. Sophia is using a cause-effect relationship to make an analogy.
4. Sophia is using an item-category relationship to make an analogy.