The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Fibroblasts in cell-rich zone primarily secretes:   (A) Type I collagen   (B) Type VI collagen   (C) Type V collagen   (D) Type IV collagen
['(A) Type I collagen <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Type I collagen \n (B) Type VI collagen \n (C) Type V collagen \n (D) Type IV collagen <> possible answers', '  Fibroblasts in cell-rich zone primarily secretes: <> context@']