When President is the title of the political leader of all of the following countries EXCEPT A) China. B) Mexico. C) the US. Eliminate D) the United Kingdom.?

The title of President is used for the political leader in Mexico and the United States, but not in China or the United Kingdom. In China, the political leader is referred to as the General Secretary of the Communist Party, while the United Kingdom has a Prime Minister as its head of government. Therefore, the correct answer is A) China and D) the United Kingdom, as neither uses "President" for their political leader.