Directions: The question below consists of a word, followed by four words or phrases. Choose the word or phrase that means most nearly the same thing.

hierarchy

Hierarchy refers to a system or organization in which people or groups are ranked one above the other according to status or authority. "Ordering" captures this sense of arrangement and ranking, making it the closest synonym among the options. The other options (obstacle, presumption, enmity) are unrelated to the concept of ranked arrangement.