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 a primary cell culture - 
Select and explain. 
A. Chick fibroblast, B. Hela, C. HEP-2, D. HL-8
A: Chick fibroblast
Answer: A: Chick fibroblast 
Explanation: Monkey kidney,human embryonic kidny,human amniotic&chick embryo cell cultutes areprimary cell culture REF:MICROBIOLOGY ANANTHA NARAYANAN NINTH EDITION PAGE.435