7292. War always has a baneful effect on the people of a nation.

✅ The correct answer is option C.
Unpleasant : causing discomfort, unhappiness, or revulsion; disagreeable.

Foul : offensive to the senses, especially through having a disgusting smell or taste or being dirty.

Pernicious : having a harmful effect, especially in a gradual or subtle way.

Beneficial : resulting in good; favourable or advantageous.

Baneful : harmful or destructive.

Synonym of Baneful is Pernicious