input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** In a population of 10000 people, the prevalence of a disease is 20%. The sensitivity of a screening test is 95% and specificity is 80%. The positive predictive value of the test will be -   (A) 45.70%   (B) 54.30%   (C) 15.30%   (D) 98.50%
output: ['(B) 54.30% <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) 45.70%  (B) 54.30%  (C) 15.30%  (D) 98.50% <> possible answers', '  In a population of 10000 people, the prevalence of a disease is 20%. The sensitivity of a screening test is 95% and specificity is 80%. The positive predictive value of the test will be - <> context']