A dual economy means: 1. The existence of black money and white money 2. The existence of agriculture and industry 3. The existence of commercial agriculture with subsistence farming 4. Modern industry and commercial agriculture co-existing with subsistence farming and traditional handicrafts

A dual economy means: 1. The existence of black money and white money

1.	A dual economy means: 1. The existence of black money and white money 2. The existence of agriculture and industry 3. The existence of commercial agriculture with subsistence farming 4. Modern industry and commercial agriculture co-existing with subsistence farming and traditional handicrafts
A.	1 only
B.	1, 2 and 4
C.	2, 3 and 4
D.	All of these
Answer» D. All of these