I have two questions related to the following sentence:
I saw pictures of animals.
My first question is, what is the direct object of the sentence?
(a) The direct object is pictures.
(b) The direct object is pictures of animals.
(c) Either or both pictures and pictures of animals can correctly be termed the direct object of the sentence.
My second question is whether there is a grammatical term for a prepositional phrase like of animals that modifies the direct object of a sentence, and if so, what is it?
I'm hoping to receive an authoritative reply to both questions by someone who truly understands grammatical terminology, and not a criticism of the sample sentence or a suggestion of how to rewrite or replace the sample sentence. Thank you.