You are a network administrator tasked with setting up a Wi$-$Fi network in a large office building. The building has multiple floors with thick concrete walls and several electronic devices that could cause interference. Your primary goal is to ensure high data rates and minimal interference for the office's Wi$-$Fi network.

Given this scenario, which frequency band and configuration would be the most appropriate for your wi$-$Fi network?

Use the $5$ GHz band but limit the power output to comply with regulatory constraints.

Use the $2\mathrm{.}4$ GHz band because it has better penetration through solid surfaces.

Use the $2\mathrm{.}4$ GHz band because it is less congested and supports more individual channels.

Use the $5$ GHz band because it supports higher data rates and has more individual channels.