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Cramer's Homework, C&J Energy, Guidewire and More

Friday, 10 Feb 2012 | 6:45 PM ET

Mad Money's Cramer sharpens his pencil, and answers viewer questions on stock picks. On Friday, he does his homework on KIT digital, C&J Energy Services, Optimer Pharmaceuticals, Masimo Corp., Ziopharm Oncology, and Guidewire.