Necessary condition concept – UGC NET Question

A necessary condition is one without which a given event or property cannot occur. If the necessary condition is absent, the event is impossible. However, simply having the necessary condition may not be enough to bring about the event because additional conditions might also be required. Thus the condition described in the stem is a necessary condition.

Option A:
Option A, sufficient, would mean that the condition by itself is enough to produce the event whenever it occurs. This emphasises guarantee rather than requirement, and so does not fit the stem’s description.

Option B:
Option B, causal, indicates that a factor plays some role in producing an effect, but not every cause is necessary and not every necessary condition is a direct cause. The term is therefore too vague for the precise logical relation required.

Option C:
Option C is correct because necessity focuses on what must hold whenever the event occurs. For instance, having oxygen is necessary for ordinary fire, even though oxygen alone cannot start a fire without fuel and ignition. This illustrates the idea that presence is required but not by itself sufficient.

Option D:
Option D, random, connotes lack of systematic relation and is the opposite of being required. A random factor is neither necessary nor reliably connected to the event.