GMAT Critical Reasoning (CR) | Re: Diane: As we both know, the population of this country is aging.

How can it be D?

D- whether regions characterized by harsh climates are likely to experience population declines in the foreseeable future

Diane is talking about "other regions". Other regions are likely to suffer population declines. And that is not even the focus of the argument. They both disagree about where old people will move to.

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