Given the code fragment: Which two code fragments, inserted independently, enable the code to compile?

The code fragment `t.fvar = 200;` correctly assigns the value 200 to the instance variable `fvar` of the object referenced by `t`. This is the standard way to access and modify an instance variable of a specific object, particularly from a static context or from outside the object's immediate scope.

`fvar = 200;` attempts to access `fvar` directly without an object reference. This would only compile if `fvar` were a static variable or if the assignment was within a non-static method of the class defining `fvar` without explicit object reference.

`this.fvar = 200;` attempts to assign to `fvar` using the `this` keyword. The `this` keyword refers to the current object instance and can only be used within a non-static context, such as a non-static method or constructor.

The code fragment `t.fvar = 200;` is identical to option A and also correctly assigns the value 200 to the instance variable `fvar` of the object referenced by `t`.

`this.fvar = 200;` is identical to option C and attempts to assign to `fvar` using the `this` keyword, which is only valid within a non-static context.