The following are multiple choice questions (with answers) about medical knowledge.   **Question:** If 2 Implants of size 4 mm are to be placed in a ridge, what should be the minimum width required in the ridge   (A) 14 mm   (B) 15 mm   (C) 17 mm   (D) 18 mm
['(A) 14 mm <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) 14 mm \n (B) 15 mm \n (C) 17 mm \n (D) 18 mm <> possible answers', '  If 2 Implants of size 4 mm are to be placed in a ridge, what should be the minimum width required in the ridge <> context@']