The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following stain is used for diagnosis of Granular dystrophy of cornea?   (A) Colloidal iron   (B) Congo red   (C) PAS   (D) Masson trichrome
['(D) Masson trichrome <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Colloidal iron \n (B) Congo red \n (C) PAS \n (D) Masson trichrome <> possible answers', '  Which of the following stain is used for diagnosis of Granular dystrophy of cornea? <> context@']