The correct option is
A I've never been
The present perfect tense is used to describe something that happened in the past, but the exact time it happened is not important. It has a relationship with the present. This sentence is a typical example of present perfect tense.
Have/has + past participle makes the present perfect.
Now since, the whole sentence is in the first person, we would be using "have" and not "has".
("have" is used in case of first and second person framed sentences.) Since, have is only used in the negative form, we would be using the negative form (as presence of have is compulsory for a sentence to be in present perfect tense).
Now, for the past participle, it the form of a verb, typically ending in -ed in English, which is used in forming perfect and passive tenses and something as an adjective, "been" in this case.
Option D is correct.