Which antenna type is most appropriate for covering a long hallway?

An omnidirectional antenna radiates RF energy equally in all horizontal directions, which wastes signal into walls and adjacent spaces rather than projecting it down the hallway.

A patch antenna has a directional pattern but a much wider beam angle than a Yagi, making it less efficient for the narrow linear coverage a long hallway demands.

A Yagi antenna has a tightly focused, high-gain directional radiation pattern that can project RF energy the length of a hallway with minimal side radiation. Its beam width and gain characteristics are specifically suited to linear coverage scenarios where omnidirectional radiation would waste energy and cause interference in adjacent areas.

A dipole antenna is effectively omnidirectional in the horizontal plane and shares the same limitation as option A - it does not concentrate energy along a single corridor axis.