default or selected kernelversion does not have config value CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE.
Result is shown for kernelversion 6.9.9

NSA SELinux boot parameter default value

configname: CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE

Linux Kernel Configuration
└─>Security options
└─>NSA SELinux boot parameter default value
In linux kernel since version 2.6.12  
This option sets the default value for the kernel parameter
'selinux', which allows SELinux to be disabled at boot. If this
option is set to 0 (zero), the SELinux kernel parameter will
default to 0, disabling SELinux at bootup. If this option is
set to 1 (one), the SELinux kernel parameter will default to 1,
enabling SELinux at bootup.

If you are unsure how to answer this question, answer 1.