Basic probability axioms – UGC NET Question

Statements A, B and C express the basic axioms about range of probabilities and values for sure and impossible events. Statement D gives the general addition rule for the probability of a union of two events. Statement E is false because probabilities are never negative. Therefore, A, B, C and D only form the correct set.

Option A:
Option A is incomplete as it omits D (union/addition rule).

Option B:
Option B is incomplete because it omits B (sure event) and does not include all core axioms together.

Option C:
Option C is incomplete since it omits A (range restriction 0 ≤ P(A) ≤ 1).

Option D:
Option D is correct because it includes all true statements and excludes E, which suggests an impossible negative probability.