Which of the answers to the Fermi Paradox is most likely to be true?

The Fermi Paradox is not actually a paradox nor was it Enrico Fermi's original idea.

The Fermi Paradox is the conflict between the lack of clear, obvious evidence for extra-terrestrial life and various high estimates for the existence of such life.

There are various answers :-
There is no such life.
There may have been such life, terminated by plague, high-tech war, asteroid impact, climate change etc.
There is life but it wishes to not be detected and can implement such a wish.
There is life but it will always be too far away for it to detect us or us to detect it no matter how advanced the technology.

The Universe itself is a living thing, its God, heaven hell, and beyond. If you can imagine beyond, then think again, think beyond that.

Into infinity, and beyond.

You are a hamster, wondering if there is anything beyond its cage.

My theory is the Ultimate Truth; there will come a time when we (living and dead) are all able to communicate and we will understand the Whys and Wherefores of the Universe including What is God.

There is alien life, and it’s already amongst us. How else do you explain Frank?