Which option correctly shows per person resources decreasing despite population growth?

Correct answer: Resources remain fixed and population increases

The direct answer is A. Per person, or per capita, availability is found by considering the total amount of a resource in relation to the number of people sharing it. If the total resource remains fixed while population increases, the same resource must be divided among more people. Therefore the average amount available to each person can decrease, even though the total resource has not changed. A is correct because it creates exactly this condition. B is wrong because rapidly increasing resources and a declining population would generally raise per person availability. C is wrong because a population of zero leaves no people among whom the resource is shared, so it does not show pressure caused by population growth. D is wrong because unlimited resources would not normally create decreasing per person availability. Memory cue: fixed resource divided among more people means a smaller share per person.