The best answer is C.
While anglerfish do have unique reproductive adaptations (as mentioned in option C), the other options are either inaccurate or not the primary reasons for their survival. Anglerfish do not have hermaphroditic traits like snails (option A), and while camouflage can be beneficial (option B), it is not their main reason for avoiding extinction. Therefore, option C, which highlights their reproductive strategy, is the most specific reason why anglerfish are unlikely to become extinct.