Which of the following best describes routine in which semicolons, dashes, quotes, and commas are removed from a string?

Which of the following best describes routine in which semicolons, dashes, quotes, and commas are removed from a string?
A . Error handling to protect against program exploitation
B . Exception handling to protect against XSRF attacks.
C . Input validation to protect against SQL injection.
D . Padding to protect against string buffer overflows.

Answer: C