Select the correct answer. A bird enclosure at a zoo was initially housed with 350 birds. The total population of birds in the enclosure is expected to increase every year by 5%.

Which function accurately describes the population of the birds in the enclosure, f(x), after x years?

A. f(x)=350(1.05)^x

B. f(x)=1.05(350)^x

C. f(x)=350(1.5)^x

D. f(x)=1.5(350)^x