'Soldiers serve their country.' Which of the following can be validly said?

AMen mostly serve their country

BThose who serve their country are soldiers

CSome people who are soldiers serve their country ✓ Correct

DWomen usually do not serve their country as they are not soldiers

Correct answer: (C) Some people who are soldiers serve their country

Explanation

It can be validly said that some people who are soldiers serve their country.

'Soldiers serve their country' is a universal affirmative about soldiers.

A universal affirmative yields, by subalternation, the corresponding particular.

So from all soldiers serving, some soldiers serve their country follows.

This particular claim is the safe valid inference.

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