You recently went on an official trip to another country to discuss a business proposition with a potential vendor.The vendor took you out for lunch and offered you gifts, as it is customary in that country. You must

a) Tell the vendor that you cannot accept the gifts as per company policy

b) Accept the gifts as it is a local custom and promptly inform your manager

c) Return the gifts because accepting them could be interpreted as a personal gain

d) Accept the gifts, as they are not expensive