Javascript What does 'this' refer to when you invoke a function by using the // keyword, new (that is, use a function as a constructor)? For example: const obj = {x: 123, foo: foo}; function foo() { console.log(this); const f = new foo(); console.log(f); A. the global object OB. the object that the function was 'called on' OC. an object that this is explicitly set to by the caller OD. an "empty object" with no properties O E. undefined OF. this code causes an error