Q7 - I just want to ensure I did this per the steps correctly

In the summer the activity level of a certain type of lizard varies according to the time of day. A biologist has determined that the activity level is given by the function below, where t is the number of hours after 12 noon. When is the activity level highest? When is it lowest? a(t) = 0.00103 - 0.286t2 + 2.301t+ 5 Choose the correct answer below. . The highest level of activity occurs at 4:07 RM, and the lowest level of activity occurs at 5:43 AM. 0 B. The highest level of activity occurs at 5:07 RM, and the lowest level of activity occurs at 6:43 AM. 0 C. The highest level of activity occurs at 5:07 RM, and the lowest level of activity occurs at 5:43 AM. 0 D. The highest level of activity occurs at 4:07 PM, and the lowest level of activity occurs at 6:43 AM