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The following are some activities carried out in an experiment to investigate drainage in soil.
(i) Put equal amounts of three types of soil in separate funnels.
(ii) Place the funnels on the mouth of each of three plastic bottles.
(iii) Put cotton wool in the neck of each funnel.
(iv) Pour equal amounts of water on each type of soil at the same time. Which one of the following is the CORRECT order of the activities?
A.(i), (ii), (iii), (iv).
B.(iii), (ii), (i), (iv).
C.(i), (iii), (ii), (iv).
D.(ii), (i), (iii), (iv).