Which of the following activities are functions of agricultural marketing boards in West Africa? 
l. Price stabilization within seasons. 
ll. Harvesting of the farm produce 
lll. Grading and standardization of produce. 
IV. Market research for produce

A.

l and ll only

B.

ll and lll only

C.

ll, lll and lV only

D.

l, lll and lV only

Correct answer is D

No explanation has been provided for this answer.