Respuesta :
The answer is D because it sounds like the most ethical answer. The other choices are wrong because the could possibly hurt someone or an animal.
Answer:
D.) Research on animals in which the animal experiences no fear or pain.
Explanation:
It is ethical to perform test on an animal such that the animal experiences no fear or pain. Â
It is unethical to perform test on an animal when some other tests can be performed without the animal to get the desired results. Â
Polluting the water resource with contamination is an unethical practice. Â
People who are vulnerable cannot be subjected to experiments. Â