Statement: All pins are bags. All chalks are bags. All needles are bags. Conclusions: I. Some needles are pins. II. Some chalks are needles. III. No needle is pin.

Only I follows
Only III follows
Only either I or III follows
Only either I or III and II follows

Correct Answer: Only either I or III follows

Explanation:

All pins are bags (A) → conversion → Some bags are pins (I). All needles are bags + Some bags are pins = A + I = No conclusion Hence I and III do not follow by combination. However, they from an complementary E-I pair, either I or III follows. Again, All chalks are bags + conversion of all needles are bags = A + I = No conclusion Hence II do not follow.

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