Answer:Option 3 is correct.Step-by-step explanation:Option 1: y = 0.25xsince, power of x is 1 in this function.Thus this is a linear function.Option 2: y = [tex]x^{0.25}[/tex]Here, in this function power of x is 0.25So, It is a polynomial function.Option 3: y = [tex]log_{0.25}x[/tex]In this function we can see the term with log written.Thus this is a Logarithmic function with base 0.25Option 4: y = [tex](0.25)^x[/tex]In this function x is in the power of 0.25.Thus this is a exponential function.