The two ways of relating what a person has said are 1)direct and 2)indirect (reported).
In the direct speech, the exact words of the original speaker are repeated.
In the indirect speech (reported speech), the exact meaning of what the speaker told is expressed but not necessarily in the speaker’s exact words.
The fourth alternative is correct (D).
All descriptions are correct and must be followed to compile a list of references. First, check out what owner will say about it. Second, ask permission and third, if allowed, thank, as a good rule of education. Meeting these requirements you will have no copyright issues.