To solve this question, the user needs to know about cross-site scripting (XSS) attacks and their impact on web applications.

Cross-site scripting (XSS) attacks occur when an attacker injects malicious code into a web page viewed by other users. The attack allows the attacker to steal user data, such as passwords or session tokens, or to manipulate the content of the web page in a way that is harmful to users.

Now, let's go through each option and explain why it is right or wrong:

A. Compromise of users: This option is correct. One of the main risks of a cross-site scripting attack is that it can compromise the security of users. An attacker can use the attack to steal user data, such as login credentials or session tokens, and use that data to gain unauthorized access to other parts of the application or other applications entirely.

B. Loss of data integrity: This option is incorrect. While cross-site scripting attacks can result in the loss of data, the greater risk is the compromise of user security.

C. Destruction of data: This option is incorrect. Cross-site scripting attacks are not typically used to destroy data. Instead, they are used to steal data or manipulate web content.

D. None of the above: This option is incorrect. As explained above, option A is the correct answer.

The Answer is: A