please give reason to choose correct answer

The function 2sqrt(Ign) is best described as which of the following? (this is 2x where x is the square root of log2 n, or lg n) logarithmic function O polynomial function exponential function sublinear function Question 5 Which of the following statements is true about the two functions f(n) = n2 x (log n) and g(n) = n3 O f(n) grows asymptocially faster than g(n) O f(n) and g(n) asymptotically grow at the same rate g(n) grows asymptotically faster than f(n) O None of the above