This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
Which of the following is true regarding influenza - 
Select and explain. 
A. It is caused by an enveloped DNA virus, B. Laboratory studies may show neutropenia early in the course of disease, C. Primary infectious pneumonia is less common than secondary bacterial pneumonia, D. Antiviral agents given early prevents complication
C: Primary infectious pneumonia is less common than secondary bacterial pneumonia
Answer: C: Primary infectious pneumonia is less common than secondary bacterial pneumonia 
Explanation: A most impoant complication is pneumonia which is mainly due to bacterial superinfection REF:MICROBIOLOGY ANANTHA NARAYANAN NINTH EDITION PAGE.500