The correct answer is "object complement", because it follows a direct object (in this case "the normally flat land") and renames it or states what it has become. It cannot be "predicative nominative" because "hilly" is not a noun, "direct object" here is "the normally flat land", and a predicate adjective follows a linking verb (for example, She is PRETTY.) So the only option left is "object complement".
Answer:
True
Explanation:
An index is a list of words or phrases and other similar ideas that point you to where useful material relating to that heading can be found in a text.
