b. Pasteurized milk stored at room temperature for 4 days
a. Pasteurized milk stored at 4*C for one week
c. Autoclaved milk
Explanation:
Autoclaved milk has least expected bacterial growth because Autoclaved sterilization kills all the bacteria present in it so little chance of bacterial growth. Pasteurized milk stored at room temperature for 4 days has more bacterial growth due to favorable environment whereas little growth occur in the Pasteurized milk which stored at 4*C for one week due to less favorable environment.