Correct Answer:
A. Quaid-e-Azam
The correct answer is Quaid-e-Azam Muhammad Ali Jinnah. He became the first President (President of the Assembly) of Pakistan's Constituent Assembly on 11 August 1947. After his death in 1948, Maulvi Tamizuddin Khan was elected President (Speaker) of the Assembly.
Why the Other Options Are Incorrect
- Molvi Tamiz-ud-Din: Became President of the Assembly after Jinnah's death.
- Liaquat Ali Khan: First Prime Minister of Pakistan.
- Khawaja Nazimuddin: Served as Governor-General and later Prime Minister.
Therefore, Quaid-e-Azam Muhammad Ali Jinnah is the correct answer.