This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epidemiology, Subject name: Social & Preventive Medicine
The period from acquiring inrfection to maximum infectivity is called as- 
Select and explain. 
A. Generation time, B. Serial time, C. Incubation period, D. Secondary interval
A: Generation time
Answer: A: Generation time 
Explanation: In general, generation time is roughly equal to incubation period. But these 2 terms are not the same. The time of maximum communicability may precede or follow the incubation period. Ref: 25th edition, Park's Textbook of Preventive and Social Medicine, Page no. 108