Given a part of privacy policy text, classify it into one of these categories: 
 (1) First Party Collection/Use (how and why a service provider collects user information), 
 (2) Third Party Sharing/Collection (how user information may be shared with or collected by third parties), 
 (3) User Choice/Control (choices and control options available to users), 
 (4) User Access, Edit, & Deletion (if and how users may access, edit, or delete their information), 
 (5) Data Retention (how long user information is stored), 
 (6) Data Security (how user information is protected), 
 (7) Policy Change (if and how users will be informed about changes to the privacy policy).

You can make no specified choices about the use of unspecified information by an unspecified party for marketing purposes.
User Choice/Control
The passage describes a service provider's privacy policy that allows users to choose whether or not their information can be used for marketing purposes. Therefore, this passage falls under the category of User Choice/Control..