PLEASE HELP ASAP ITS DUE SOON I GIVE BRAINLIEST

If f(x) is the total number of bacteria present in a sample after x hours, which of the following statements best describes the meaning of f(2)=12?
A.total number of bacteria present in the same after 12 hours is 2.
B. The total number of bacteria present in the sample after 6 hours is 2.
C. The total number of bacteria present in the sample after 2 hours is 12. D. The total number of bacteria present in the sample after 6 hours is 12