Among various populations of plants or animals, diseases spread exponentially. Use the function to model the spread of the Avian Bird Flu disease among a flock of 6000 chickens on a chicken farm, with t equal to the number of days since the first case of the disease. How many birds will be infected with the Flu after 6 days?a.3560 chickensc.1280 chickensb.356 chickensd.516 chickens