To answer this question, we need to understand what can and should be stored in a cookie.
Option A) Session ID - This option is correct. A session ID is a unique identifier that is assigned to a user's session. It can be stored in a cookie to maintain the user's session state and identify the user during subsequent requests.
Option B) Account Privileges - This option is incorrect. Storing account privileges in a cookie can pose a security risk, as it exposes sensitive information about the user's account to potential attackers.
Option C) UserName - This option is incorrect. Storing a user's username in a cookie can also pose a security risk, as it can be used by attackers to impersonate the user or gain unauthorized access to their account.
Option D) Password - This option is incorrect. Storing a user's password in a cookie is a severe security risk. Passwords should never be stored in plain text or in any easily reversible form, and it is recommended to use secure methods like hashing and salting to store and verify passwords.
The correct answer is Option A) Session ID. Storing a session ID in a cookie allows for maintaining the user's session state without exposing sensitive information like account privileges, username, or password.