The correct choice is Wired extension.

Wired extension mode means the access point uses an Ethernet backhaul to join the building network so wireless clients are served from the same LAN that the bakery already uses. That wired connection gives predictable throughput and latency which is ideal for a single customer Wi Fi deployment in a small shop.

With Wired extension you simply run an Ethernet cable from a switch or router to the access point and the AP becomes part of the existing wired infrastructure. That is the simplest and most reliable way to add customer Wi Fi in a neighborhood bakery.

Standalone is not correct because that term describes an AP operating independently and does not specifically indicate the method of backhaul to the building Ethernet. It may describe how the AP is managed but it is not the mode that answers the connection method asked for.

Bridge is not correct because bridge mode is intended to link two network segments often over a wireless link or to create a point to point connection between locations. It is used to join networks rather than to describe a local AP attached to the building Ethernet.

Enterprise extended is not correct because that implies a controller based or multi AP enterprise deployment that extends coverage with centralized services. It is more complex than required for a single bakery AP and it does not specifically denote using a wired Ethernet backhaul.

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