This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Environment and Health, Subject name: Social & Preventive Medicine
[{'content': 'Epidemic relapsing fever is transmitted by? \nSelect and explain. \nA. Louse, B. Soft tick, C. Hard tick, D. Rat flea', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ANSWER: (A) LouseREF: Park textbook of preventive and social medicine 20th edition page 684 "Epidemic relapsing fever is transmitted by Louse"Always remember:Epidemic typhus Endemic typhus Epidemic relapsing fever Endemic relapsing feverLouse Rat flea Louse Soft tickDiseases transmitted by louse can be remembered as "PERT": Pediculosis, Epidemic typhus, Relapsing fever (Epidemic), Trench fever.Diseases transmitted by soft tick can be memorized as \'QRS": Q-fever, Relapsing fever (Endemic) by Soft tickDiseases transmitted by hard tick can be memorized as "Hard tick Takes Very Kind Babe": Tick typhus (Rocky Mountain spotted fever), Tick Paralysis, Tick fever, Tularemia, Viral encephalitis (Russian spring summer encephalitis), Viral hemorrhagic fever, Kyasanur Forest Disease, Babesiosis', 'role': 'assistant'}]