Explanation
Correct answer: A.
Choice A is the best answer. While many networks can perform navigation tasks, or even mimic grid cells, it doesn’t mean they’re actually behaving like biological brains—this finding suggests that the rules that govern neural network behavior are completely unlike the way real brains work.
Why the other choices are wrong
Choice B
Choice B is incorrect. Although it mentions the rules that are programmed into the networks, this finding wouldn’t clarify whether or not these rules have anything to do with the function of biological brains.
Choice C
Choice C is incorrect. This choice suggests that neural networks are modeled after multiple types of brain cells, which sidesteps the question of whether these rule-based networks are genuinely similar to biological brains.
Choice D
Choice D is incorrect. This choice doesn’t address the key point of the claim, which is that the apparent similarity between neural networks and biological brains is only due to the rules programmed into the networks. It focuses on training tasks, not the originally programmed rules.