Given below are two statements. In the light of the above statements, choose the correct answer from the options given below.

Statement I:'Some S is P' is contrary to 'Some S is not P'.

Statement II:'Some S is not P' is contradictory to 'All S is P'.

ABoth Statement I and Statement II are true

BBoth Statement I and Statement II are false

CStatement I is true but Statement II is false

DStatement I is false but Statement II is true ✓ Correct

Correct answer: (D) Statement I is false but Statement II is true

Explanation

Statement 1 is false while Statement 2 is true.

'Some S is P' (I) and 'Some S is not P' (O) are subcontraries, not contraries, so Statement 1 misnames the relation.

Subcontraries may both be true together, whereas contraries can never both be true.

'Some S is not P' (O) and 'All S is P' (A) lie on a diagonal of the square and always take opposite truth values.

That opposition of truth values is exactly the mark of contradictories, which is what Statement 2 asserts.

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