Question

i convinced HIM that my idea was better than jake's. a)objective b)possesive C)nominative i choose c

Answer 1

No.

In normal English word order (not counting questions), first there's the subject and everything that modifies it, then there's the verb and everything that modifies it, and then there's the direct object (if the verb is a transitive action verb) or predicate nominative (if the verb is a linking verb).

Here are the words in your sentence:

I convinced him ....

Tell me what each of those three words is.

Answer 2

nominative = the subject or predicate noun/pronoun

possessive = ownership

objective = direct object or any other type of object