The bird flu is considered dangerous when the number of people getting sick is growing at a rate proportional to the number of people infected. Public health workers track bird flu infection rates and notice that the number of cases is doubling every day. Let F(t) be the number of people infected by the flu, where t is measured in days. Use differential equations to find the general solution to for F(t), where F(0) = 50 is the initial population.A. F(t) = 50/e^0.6931tB. F(t) = e^0.6931t/50C. F(t) = 50e^-0.6931tD. F(t) = 50e^0.6931t