A. Allergic – An allergic reaction typically presents with itching, rash, and wheezing rather than fever, chills, and hematuria. B. Hemolytic – Correct Answer. A hemolytic reaction occurs when the immune system attacks transfused red blood cells due to incompatibility. Symptoms include fever, chills, hypotension, back pain, and hematuria (red-tinged urine). This is a medical emergency requiring immediate intervention. C. Acute pain – Acute pain transfusion reaction is rare and mainly presents with severe chest, back, and joint pain, without fever or hematuria. D. Febrile – Febrile reactions cause fever and chills but do not typically cause hematuria, which is indicative of hemolysis.