A Behavioural Neuroscientist Wishes to Study the Potential of a New

A behavioural neuroscientist wishes to study the potential of a new technology for restoring vision in people with damage to a specific region of the brain.Neuropsychologists have already done work with humans who have damage to that region and their results are encouraging but the number of people available for testing is too small to make definitive conclusions.The researcher proposes testing the effect of the technology on monkeys.In order to do that test he has to damage part of the brain of the monkeys and then check if the technology restores vision.Which of the following statements is true in relation to the technical definition of the ethical principles?

A) This research is unethical because it involves deception.
B) This research is unethical because it involves concealment.
C) This research is unethical because it ignores the principles of animal rights.
D) This research is ethical because much more cruel things are done to animals elsewhere.
E) None of the above.