Her Last Affaire is a 1935 British drama film directed by Michael Powell and starring Hugh Williams, Viola Keats, Cecil Parker and Googie Withers. The wife of a politician is found dead at a country inn. It was based on the play "S.O.S." by Walter Ellis.

Can we draw the following conclusion?
"Her Last Affaire" was based off of a play.

Choose your answer from: A. Yes. B. It's impossible to say. C. No.
A.