We have a property for odd functions, which is given below. Let f(x) be an odd function then it must satisfy the below - mentioned property.
Now, we have been given the function
For this function to be odd, it must satisfy the above written property.
Replace x with -x, we get
And, we have to also find
Hence, in order to the given function to be an odd function, we must determine whether 9-4(-x)^2 is equivalent to -(9-4x^2) or not.
Therefore, C is the correct option.