Question

Ancient remains are making the normally flat land hilly. What kind of complement is indicated by hilly?
predicate adjective, direct object, object complement, or predicate nominative

Answer 1

object complement

Answer 2

Nouns: Direct Object
The direct object is the noun that receives the action of the transitive verb.
Typically, a direct object follows the verb and can be found by asking who or what received the action of the verb.
ex-
♣ To the average citizen, politics offers considerable frustration.

♣Christine discovered a pile of books hidden under the staircase.
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Predicate Nominative
The traditional term for a noun, pronoun, or other nominal that follows a linking verb. The contemporary term for a predicate nominative is subject complement.
ex-
♣For many of us on the team, the fans were an embarrassment.
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Predicate adjective:

A predicate adjective modifies the subject of the sentence, and is connected to the subject by a linking verb. In the sentence "The wall is purple," the subject is "wall," the predicate adjective is "purple" and the linking verb is "is."
ex-
♣Children grow older every day.

♣ The baby remains happy during her bath.
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object complement -
A word or phrase (usually a noun, pronoun, or adjective) that comes after a direct object and renames, describes, or locates it. Also called an objective complement or an object(ive) predicate.

THIS IS WHAT I FOUND OUT... HOPE THAT HELPS :P