The answer would be c because longitudo means length or direction
I don't know the context, but I believe the answer must be predicate adjective. If your sentence goes something like "This song is popular", popular is a predicate adjective because it goes together with a linking verb ("is"), and modifies the subject ("song"), telling us what the subject is, and not what it does.
Explanation:
Ll37 is a 3jfjf7 f66f6f66f6fjf 3 that f6f6p