Cells Were Infected with Approximately 1,000 Copies of Either Virus

Multiple Choice

Cells were infected with approximately 1,000 copies of either virus A or virus B at the 0 time point. At five-minute intervals, a sample of the virus and cell mixture was removed. The intact cells were removed from the sample, and the number of viruses per millilitre of culture was determined.
-Using the data in the figure, how long does it take for virus B to go through one lytic cycle?

A) 15 minutes
B) 30 minutes
C) 45 minutes
D) 60 minutes