This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AIIMS 2019, Subject name: Social & Preventive Medicine
Regarding Influenza, not true statement is 
Select and explain. 
A. Secondary attack rate 5-15%, B. Virus shedding present before the patient presents with symptoms, C. 1-5 years age is not a high risk age group, D. Aquatic birds are reservoir
C: 1-5 years age is not a high risk age group
Answer: C: 1-5 years age is not a high risk age group 
Explanation: - High risk age group of influenza include, - those > 65 years & - those < 5 years