Answer:
A) Viruses/cell*hours
Step-by-step explanation:
Here, R represents the rate of infection, V represents the number of viruses in a cell, C represents the number of cells and t represents time ( In hours).
Also, the given formula,
[tex]R=\frac{V}{CT}[/tex]
[tex]\implies \text{Rate of infection}=\frac{\text{Viruses}}{\text{Cells}\times\text{hours}}[/tex]
Hence, option A is correct appropriate measurement unit for rate of infection.