Which of the following accurately defines the term self determination

Apex "The idea that people with a shared culture should be able to govern themselves"

legal rights and freedom of speech.i hope that it is correct.

brainliest if correct

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).