According to Regan, we must: Group of answer choices abolish all medical research because it necessarily treats subjects as mere means to an end abolish all practices that limit the freedom of non-human animals abolish all medical research that inflicts pain on non-human animals abolish any medical research that treats subjects as mere means to an end

we must abolish all medical research that inflicts pain on non-human animals.

Explanation:

In his book Case for Animals Liberation, Tom Regan contends that any systemic oppression of creatures is ethically reprehensible. Animals are used for feeding, killing, traps, testing, teaching, and investigation, according to Regan. Humans as well as nonhumans, according to Regan, are both constituents of life with equal intrinsic value.

He thinks that humans as well as nonhumans must be respected similarly but without distinction, and that nonhumans should not be subjected to any societal practises that damage or injure them.

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