Advantage of the Shell Vial Culture Over Conventional Cell Culture

Advantage of the shell vial culture over conventional cell culture for virus is that

A) virus is detected more quickly using the shell vial technique.
B) inoculated shell vials can be stored for up to 9 weeks before use for viral culture.
C) CPE is more easily interpreted.
D) centrifugation is not necessary for optimal detection.
E) All of the above are correct.