None of the given options is legal. To make it legal, initialize the `car` pointer with memory allocation using `new`, or use an object directly. Example: `car* car = new car(); car->start(); car->brake();` Option D: None of the above is the answer.
None of the provided options is legal because there is no memory allocation for the `car` pointer, and attempting to access methods through an uninitialized pointer or object can lead to undefined behavior. To make it legal, you should allocate memory for the `car` pointer using `new` or use an object directly. Here's an example:
car* car = new car();
car->start(); // Legal
car->brake(); // Legal
// or
car car2;
car2.start(); // Legal
car2.brake(); // Legal
Make sure to free the memory allocated with `new` using `delete` when it's no longer needed to avoid memory leaks.
So the answer is option D. None of the above.
The complete question is:
given the following code for a car class with methods start and brake, which of the following is legal? car *car;car car2;group of answer choices
a. car2->start(); ();
b. car->brake();
c. car2->brake();
d. None of the above