The reference type (not the object type) determines which overloaded method is invoked
Reference type determines which overloaded version (based
on declared argument types) is selected. Happens at compile
time. The actual method that’s invoked is still a virtual method
invocation that happens at runtime, but the compiler will
already know the signature of the method to be invoked. So at
runtime, the argument match will already have been nailed
down, just not the class in which the method lives.