Which sentence has the clearest meaning

Question

A pair of rain boots is in there
There is a pair of rain boots
There is a pair of boots
There is a pair of rain boots in the hallway

Answer 1

The sentence with the clearest meaning is: "There is a pair of rain boots in the hallway."

This sentence clearly indicates both the presence of a specific item (a pair of rain boots) and its location (in the hallway), making it easy to understand.