The Online Privacy Alliance: is a safe harbor program established by the U. S. government. protects user privacy during interactions with websites. has established technical guidelines for ensuring privacy. is a government agency regulating the use of customer information. encourages self-regulation to develop a set of privacy guidelines for its members.

encourages ... for its members. The last option.

Explanation:

The online Privacy Alliance is undoubtedly not a package by the US administration. It is a collaboration of 81 e-commerce associations and the businesses. And it does not defend user confidentiality during interactions with the websites, and neither has recognized any technical strategies for privacy determination. And it is also not a government agency. Though, it certainly inspires the self-regulation to advance a set of privacy guidelines for its members, Hence, the correct option is certainly the one that is mentioned in the answer section, and as explained above.