National holidays, such as Christmas Day, are explicitly mentioned as days when the library is closed. The other options do not specify holidays.
The paragraph mentions that Tom always takes "a map, water, and snacks" with him on his hikes, making this the correct choice.
The passage clearly states that Maria's favorite topic is ancient Egypt because she finds the pyramids fascinating.
The term "free Wi-Fi" in the sentence clearly refers to free internet access, which is available to customers.
The sign advises caution, so walking carefully is the correct action to avoid slipping on the wet floor.
