The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The stiffness of the bristles of a nylon toothbrush is dependent on the:   (A) Diameter and length of filament   (B) Amount of polish of filament   (C) Colour of filament   (D) Consistency of shape of the filament
['(A) Diameter and length of filament <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Diameter and length of filament \n (B) Amount of polish of filament \n (C) Colour of filament \n (D) Consistency of shape of the filament <> possible answers', '  The stiffness of the bristles of a nylon toothbrush is dependent on the: <> context@']