Who was the dissident Thai historian and writer who died in prison in 1963 under the Sarit dictatorship?

• A Kulap Saipradit ✓
• B Jit Phumisak
• C Sanya Dharmasakti
• D Puey Ungphakorn

Kulap Saipradit (pen name Siburapha) was a prominent Thai novelist and socialist intellectual who was imprisoned for his political activities and later died in exile.