Final answer:
The subject of this question is Science, and the correct answer is True.
Step-by-step explanation:
The subject of this question is Science.
The question is asking if the statement 'He nereus is simply an unmanned deep-sea remote operated vehicle (rov)' is true or false.
The correct answer is 'True' because Nereus is indeed an unmanned deep-sea remote operated vehicle (ROV) that was used for exploring the deepest parts of the ocean.