Besides attracting more tourists, the plan will also provide the authorities with more opp

Besides attracting more tourists, the plan will also provide the authorities with more opportunities to

A．check the travelers" pets" physical state.

B．perfect the online checking service.

C．protect the travelers" personal data.

D．check the travelers" detailed information.

请帮忙给出正确答案和分析，谢谢！

参考答案

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