Which expression represents the vertical asymptote of f(x)=log5(x−3)+2f(x) = \log_5(x - 3) + 2f(x)=log5(x−3)+2?
x=3x = 3x=3
x=−3x = -3x=−3
x=0x = 0x=0
x=2x = 2x=2