A combination of which of the following two kinds of premises yields no valid conclusion?

AOne universal and one particular

BTwo particular premises ✓ Correct

COne affirmative and one negative

DTwo categorical premises

Correct answer: (B) Two particular premises

Explanation

Two particular premises together yield no valid conclusion.

Particular premises distribute very few terms.

The middle term may then fail to be distributed even once.

Without a distributed middle, the two terms cannot be validly linked.

Hence a pair of particular premises proves nothing.

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