ANSWER: b. a man giving up his seat for a woman
EXPLANATION: Universal Ethics is a set of rule or principle which is needs to be followed by everyone and is applicable irrespective of caste, color, race, faith or religion. A man giving his seat to a woman is a gesture of chivalry and not a universal ethics. The man may have needed the seat more desperately than the woman due to any of his physical inabilities but giving up the seat to a completely healthy woman would not be part of his ethics.