The correct answer is option 1, Li Keqiang. Li Keqiang has recently been elected as the Prime Minister of China for a second term. Li Keqiang has been serving as the Premier of the State Council of China since 2013. He was re-elected to this position in 2018. As the Premier, Li Keqiang is the head of government and is responsible for implementing government policies and managing the economy.
Option 2, Xi Jinping, is the President of China. While the President is the head of state, the Premier is the head of government. Xi Jinping has been serving as the President since 2013 and was elected for a second term in 2018.
Option 3, Yang Xiaodu, is a Chinese politician and currently serves as the Deputy Secretary of the Central Commission for Discipline Inspection, which is responsible for combating corruption in the Communist Party of China. He does not hold the position of Prime Minister.
Option 4, Zhou Qiang, is the President of the Supreme People`s Court of China, the highest court in the country. He is not the Prime Minister.
Therefore, the correct answer is option 1, Li Keqiang.