Which sentence from the speech is best supported by the image of Joan Clarke? A. One of the biggest heroes of WWII was not a soldier but a woman who helped crack the hardest code of her time. B. However, her mathematical skills quickly shone through, and she was brought on board the team that worked to crack Enigma. C. She grew close to Alan Turing, whose Turing Machine is credited for breaking the German's code. D. Many of her contributions during WWII are still classified, so all her accomplishments are yet to be known.