You Are Given a Solution of Virus and Asked to Determine

You are given a solution of virus and asked to determine the titer.You carry out a plaque assay with 0.5mls of a 10⁵ dilution of the virus solution and obtain an average of 150 plaques.What is the titer of the solution?

A) 1) 5 x 10⁵ pfu/ml
B) 3 x 10⁵ pfu/ml
C) 1) 5 x 10⁷ pfu/ml
D) 3 x 10⁷ pfu/ml
E) 1) 5 x 10⁸ pfu/ml