Generate random number between 3 determinated values c++

my problem here is simple, all i want is a rand() that pick randomly between my values, that are 2, 4, 6, then return it.

All i tried is:

int ene = (rand() % 2)? 2: 4;

it works, returns me 2 or 4, but i dont know how to add the 6.
i want a random, that returns me 2, 4 or 6.
Any answer will be received

>Solution :

std::srand(std::time(0)); 
    int options[] = {2, 4, 6};
    int randomIndex = std::rand() % 3;
    int result = options[randomIndex];

you can try using time as seed for random generator