The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following anticoagulant preservative can be used to store blood, so that it can be kept for 35 days?   (A) Acid citrate dextrose (ACD)   (B) CPD Citrate phosphate dextrose   (C) Citrate phosphate dextrose-adenine (CPD-A)   (D) CP2D - citrate phosphate double dextrose
['(C) Citrate phosphate dextrose-adenine (CPD-A) <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Acid citrate dextrose (ACD) \n (B) CPD Citrate phosphate dextrose \n (C) Citrate phosphate dextrose-adenine (CPD-A) \n (D) CP2D - citrate phosphate double dextrose <> possible answers', '  Which of the following anticoagulant preservative can be used to store blood, so that it can be kept for 35 days? <> context@']