A supplement of Vitamin A and Zinc may boost children’s resistance to Malaria (observation from one experiment conducted in a village’X’). Which of the following, if true, would weaken the statement?
- No adult in village ‘X’ has fallen sick because of Malaria.
- For the last three years there is hardly any case of child affected by Malaria from village ‘X’.
- The experiment with Vitamin A and Zinc is being duplicated in other nearby cities adjacent to village ‘X’.
- Village adjacent to ‘X’ have reported substantial cases of Malaria affecting mostly children.