The best and most correct answer among the choices provided by your question is the second option or letter B. It was Mustafa Kemal who led the Turkish nationalists in the 1920s.
Mustafa Kemal Ataturk was born in 1881 in the former Ottoman Empire. As a young man, he was involved with the Young Turks, a revolutionary group that deposed the sultan in 1909. Ataturk led the Turkish War of Independence and signed the Treaty of Lausanne in 1923, which made Turkey a republic.
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