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
Vaccine preparation requires which virus as vector- 
Select and explain. 
A. Rhinovirus, B. Vaccinia, C. Adenovirus, D. Ebola
B: Vaccinia
Answer: B: Vaccinia 
Explanation: The vaccinia virus is being used as a vector for the develioment of recombinant vaccines REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO:462