When you implement two interfaces with the same method, how do you know which one is called?

Question

If you have TheMethod() in interfaces I1 and I2, and the following class

class TheClass : I1, I2
{
    void TheMethod()
}

If s

Answer 1

You don't use an interface in the sense of calling it. An interface is just a contract defining which methods you can call essentially. You always call the implementation.