In which condition may population of an area remain stable?

Correct answer: Births and in-migrants equal deaths and out-migrants

Direct answer: A. Population remains stable when total additions equal total removals. Additions include births and in-migration, while removals include deaths and out-migration. The relationship can be written as: population change = births + in-migrants − deaths − out-migrants. In option A, the two sides balance, so the net change is zero. People may still be born, die, arrive or leave; stable does not mean that no event occurs. B would usually produce growth because additions exceed removals. C would empty the area rather than keep its population stable. D would usually produce decline unless an unusual, balancing migration pattern were also present, which the option does not state. Memory cue: stable means total in = total out.