The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The sulcular epithelium acts as a semi permeable membrane through which   (A) Bacterial products pass in to the gingiva   (B) Fluids from the gingiva seeps in to the sulcus   (C) Both of the above   (D) None of the above
['(C) Both of the above <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Bacterial products pass in to the gingiva \n (B) Fluids from the gingiva seeps in to the sulcus \n (C) Both of the above \n (D) None of the above <> possible answers', '  The sulcular epithelium acts as a semi permeable membrane through which <> context@']