Which one of the following permission sets should be granted in order for a user to switch accounts?

The SuperUser permission set is required for a user to switch between accounts in Amazon Ad Server. This permission set grants the highest level of access, allowing for account-level management and the ability to navigate across different linked accounts. Account Administrator is incorrect because while it provides extensive control within a single account, it does not inherently grant the ability to switch to other accounts. Campaign Manager is incorrect as it focuses on managing campaigns within a specific account and lacks the broader account-switching capability.