In the UK; who is first in line to the throne

The Prince of Wales; currently Prince William; is first in line to the British throne; this question tests royal succession. In 2021; Charles was king; William held the title; Harry is lower. Understanding succession enhances global awareness; this is vital for exams or monarchy discussions; the line shapes UK governance; knowing heirs aids in political analysis; accurate knowledge ensures clarity in conversations about royalty or British politics; staying informed strengthens general knowledge for competitive contexts; C is correct as it denotes the title.