You are the IT security manager for a retail merchant organization that is just going online with an e$-$commerce website. You hired several programmers to craft the code that is the backbone of your new web sales system. However, you are concerned that while the new code functions well, it might not be secure$.$ You begin to review the code, systems design, and the services architecture to track down issues and concerns. Which of the following do you hope to find in order to prevent or protect against XSS$?$

Group of answer choices

Allowing script input

Input validation

Defensive coding

Escaping metacharacters