WAEC Agricultural Science 2011 Question 2

Which of the following statements about agricultural development are true? It leads to
I. increased processing of produce.
II. increased food production.
III. high productivity.
IV. increased agricultural labour force.

1. A.I, II and III only
2. B.I, II and IV only
3. C.I, III and IV only
4. D.II, III and IV only