What is unusual about the major international prize Camus was awarded?

He is best known for his novels The Strange (1942), The Plague (1947) and The Fall (1956). Camus received the 1957 Nobel Prize for Literature "for his important literary production, which with clarity clarifies the problems of human conscience in our times".

I remember reading this in high school... the correct answer I believe is D; to explain where she started painting flowers.