Is the postvaccination pattern of observed cases representative of predicted cases with herd immunity?

Choose one:
A. The postvaccination pattern of observed cases is representative of predicted cases in a population without herd immunity.
B. The postvaccination pattern in observed cases matches both predicted cases with herd immunity and without.
C. The postvaccination pattern of observed cases is representative of predicted cases in a population with herd immunity.
D. The postvaccination pattern in observed cases matches neither predicted cases with herd immunity or without.

C. The postvaccination pattern of observed cases is representative of predicted cases in a population with herd immunity.