Negation of statements – UGC NET Question

B, C, D and E are correct; A is false. The negation of “All S are P” is “Some S are not P”, not “No S are P”. B gives the correct negation of “Some S are P”. C and D are De Morgan’s laws. E is true about exam utility.

Option A:
Option A is incomplete because it omits E (which is true and relevant), so it does not include all correct statements.

Option B:
Option B is incorrect because it includes A, which gives the wrong negation of “All S are P”.

Option C:
Option C is correct because it includes all true statements (B, C, D, E) and excludes A (false).

Option D:
Option D is incorrect because it includes A, which is false, so it cannot be the correct set.