Which of the following function correctly represents the travelling wave equation for finite positive values of `x` and `t` :

Options

A. `y = x^(2) - t^(2)`
B. `y = cosx^(2) sint`
C. `y = log(x^(2) - t^(2)) - log(x - t)`
D. `y = e^(2x) sint`

Answer

C

Explanation

Satisfy the standard equation of wave