Which statement correctly relates rainfall distribution with water stress?

Correct answer: Low and uncertain rainfall can increase water stress

Rainfall is an important input for rivers, lakes, reservoirs, groundwater recharge, soil moisture, and farming. When rainfall is low, these sources may not be replenished sufficiently. If rainfall is also irregular, communities cannot easily predict or store enough water for drinking, crops, animals, and industry. Thus low and uncertain rainfall can increase water stress, especially where demand is high or water management is weak.

Choice A is correct because it states a possible and common relationship without claiming that rainfall is the only cause. High rainfall does not always create water stress; it may reduce scarcity, though floods, pollution, poor storage, or uneven distribution can still cause problems. Choice C ignores rainfall’s role, and D is unrelated to physical water availability. The correct conclusion is about increased risk, not an absolute rule for every place. The supplied answer is accurate.