As per commonly used meteorological classification in India, “moderate drought” corresponds to:

Correct option is C

· IMD-linked drought classifications used in Indian manuals define:
· Moderate drought – rainfall deficiency between 26–50% of normal.
· Severe drought – deficiency >50% of normal.
Why other options are wrong
· (a) Up to 10% – such small deviation is usually considered normal variation, not drought.
· (b) 11–25% deficiency – often termed “mild/slight drought” or weak deficiency, not moderate.
· (d) More than 50% deficiency – this meets the criterion for severe drought, not moderate.