This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Daily temperature variation in remmitent fever is 
Select and explain. 
A. < 0.5 C, B. >1.0 C, C. <1.0 C, D. >2 C
A: < 0.5 C
Answer: A: < 0.5 C 
Explanation: None