The structure of a logical argument is based on

AFormal validity ✓ Correct

BMaterial truth

CLinguistic expression

DAptness of examples

Correct answer: (A) Formal validity

Explanation

The structure of a logical argument rests on its formal validity.

What matters is the arrangement of terms and propositions, not their material content.

A valid form guarantees that if the premises hold, the conclusion must follow.

Material truth, wording or apt examples concern content, not structural correctness.

The skeleton of any argument is therefore its logical, formal validity.

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