What is the hippocratic oath? the standard of ethics for medical practitioners an oath chinese practitioners used to recite in ancient times an oath of commitment to medicine created by aristotle the ethical standards used by greek scientists in ancient times?

The correct answer is  the standard of ethics for medical practitioners

It wasn't used by Greek scientists but rather by Greek medical practitioners, and it wasn't made by Aristotle but by Hippocrates, upon whom the oath is based. Those who made the oath were forced to swear on medical gods that they would uphold certain ethical standards in their medical careers such as always helping people and similar things.