I'll give you a question, please answer with step-by-step reasoning process.
Religion plays a big role in many lives, but the what in the room is oddly often the most preachy?\nOptions:\n- atheism\n- atheist\n- science\n- wars\n- confusing

atheist
Atheist doent believe in the religion.

He is preachy about his disbelieve and misguide people.

.

The answer: atheist