How should a monitor be cleaned?

All exceptions are descendants of the class:

a. Throwable b. Catchable c. Tryable d. Blockable

The greatest common divisor (GCD) of two integers is the largest integer that evenly divides each of the two numbers. Write a function gcd that returns the greatest common divisor of two integers. Incorporate the function into a script that reads two values from the user. Display the result of the function in the browser’s status bar.

What will be an ideal response?