The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Negative rake angle means:   (A) Rake face is ahead of radial line.   (B) Rake face coincides with radial line.   (C) Rake face is behind the radial line.   (D) None.
['(A) Rake face is ahead of radial line. <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Rake face is ahead of radial line. \n (B) Rake face coincides with radial line. \n (C) Rake face is behind the radial line. \n (D) None. <> possible answers', '  Negative rake angle means: <> context@']