Answer:
c.there are no virtues common to all
Step-by-step explanation:
Aristotle, a Greek philosopher says that virtue is the mean. Aristotle says that virtue is the moral character or nature of as person according to which we behave in the right manner and it is considered as the mean between the extremes of excess and the deficiency.
According to him, pleasure can not be the end product of virtue. For the Greeks, virtue is same as excellence. A virtues person behaves in a particular way and is different for different people.
Thus the answer is ---
c.there are no virtues common to all