When Simon Kuznets Devised Gross National Product (GNP),he Made the Decision

When Simon Kuznets devised gross national product (GNP) ,he made the decision to exclude illegal activities like drug smuggling and gambling from his calculations.He based this decision mainly on the fact that

A) such activities, at that time, netted little national income.
B) he wanted to focus on activities that were "goods" and not "bads."
C) he could not obtain accurate information on income generated through such activities.
D) such activities generated income but few tangible products.
E) such activities were not bought and sold in markets.