HELP ASAP!! Given the following table and graph:

(Graph is in the photo)

Part A: Write the exponential function represented above.

Part B: Which of the following could be represented by the table and graph?

A. A cure has been found for an infectious disease and the number of people with the disease is decreasing by 50% every day.

B. You drive to preview your top choice in colleges. The cruise control
keeps your car traveling at a constant rate.

C. The height of a ball as a function of time after it is dropped from a
building.

D. You are performing an experiment in science class in which the
amount of bacteria you start with doubles every hour.