All people who live in the city have the right to get a card after reaching the age of 65.

Hello, Chinese public education is at your service.

Hello! This is a hypothetical question. If there is no assumption of C, that is, there are people in this city who have reached the age of 65 or above the year before199/kloc-0 but have not applied for a card, they will only apply for a card in 199 1 year. If there is such a situation, then the situation of immigration to this city mentioned in the question may not be drawn. So item C is a hypothetical question.

[Master of Tuhua Online School] The key to the reasoning of this question is the reason for the poor data.

[Common problem-solving misunderstandings] This question is easily mistakenly selected as item D, because even if all immigrants over 65 have applied for a discount card, the problem will not appear, so item D is not necessarily assumed.

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