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To disable System Integrity Protection (SIP) on a Mac with Apple Silicon, the correct choice is to select the Reduced Security option. This option allows users to customize and lower the security settings of the system, which includes the capability to turn off SIP.

SIP is designed to protect key system files and processes, and it's generally enabled to maintain the integrity of the operating system. However, in scenarios where users need to perform certain tasks that require elevated privileges, such as installing certain unsupported software or modifying system files, reducing security becomes necessary. Thus, selecting Reduced Security enables the user to choose which aspects of SIP to disable, along with any other security features that might be too restrictive for the tasks at hand.

The other options, like Full Security, Standard Security, and Permissive Security, either retain the default protective features of SIP or are not specifically intended for allowing the disabling of such critical system protections. Therefore, understanding the security settings available in the context of Apple Silicon Macs is essential for making informed decisions about system changes, thereby highlighting the implications of disabling SIP when the Reduced Security option is chosen.