Concept:A strong argument is directly linked to the issue and has logical force.
Explanation:(I) is strong because literacy does not ensure political maturity; it directly questions the basis of the proposal.
(II) is weak because there is no clear link between a voter's literacy and reduction in corruption.
(III) is strong because voting is a constitutional right of every citizen, so it should not be denied on grounds of literacy.
(IV) is strong because it directly connects literacy with the ability of voters to make informed and wiser political choices.
Thus, the strong arguments are (I), (III) and (IV).
Answer:Option C: Only (I), (III) and (IV) are strong.