99 points and brainliest! among various populations of plants or animals, diseases spread exponentially. use the function y=6000(1-e^0.15t) 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