Explanation:

A cookie (more formally, an HTTP cookie) is a small piece of data sent from a website and stored on the user's computer by the user's web browser while the user is browsing. Cookies are designed to be a reliable mechanism for websites to remember stateful information or to record the user's browsing activity. \nLet's evaluate each option:\nOption (A) **Stores the password of the user**: This is generally incorrect and a security risk. While cookies can store session IDs that keep a user logged in, they typically do not store raw, unencrypted passwords. Passwords are usually hashed and stored on the server side, not in client-side cookies. Storing passwords directly in cookies would make them vulnerable to theft. So, this is incorrect.\nOption (B) **Stores information about the user's web activity**: This is the primary function of cookies. They store data like browsing preferences, items in a shopping cart, login status, and tracking information to personalize user experience and for analytics. This directly relates to a user's web activity. So, this is correct.\nOption (C) **Stores the commands used by the user**: Cookies do not typically store a history of specific commands executed by the user within a web application. While they might store preferences that influence how commands behave, they don't log the commands themselves. So, this is incorrect.\nOption (D) **Stores software developed by the user**: Cookies are small text files for data storage, not for storing executable software or applications developed by a user. Software is typically downloaded and installed separately. So, this is incorrect. \nTherefore, the correct option is (B).