How is improving water-use efficiency linked with livelihood security in agriculture?

Correct answer: It increases the chance of maintaining production with less water

Direct answer: Option A, efficient water use increases the chance of maintaining production with less water. Water-use efficiency means obtaining useful crop growth from each unit of water, through suitable irrigation, timing, rainwater harvesting, mulching or less wasteful methods. Reasoning: efficient use reduces water loss; reduced loss helps the crop survive scarcity or drought; more reliable production supports food, income and livelihood security. It does not guarantee success in every drought, but it improves resilience. Option A is correct. Option B is wrong because crops still usually need markets and selling. Option C is wrong because better water use cannot enlarge land automatically. Option D is wrong because water management does not stop weather forecasts. Memory cue: save water, protect yield, protect income.