What is the primary function of a subscription center?

A subscription center primarily serves as a dedicated web page where subscribers can manage their own communication preferences. This functionality is crucial for effective email marketing and customer relationship management, as it empowers subscribers to choose what type of content they wish to receive and how frequently they want to be contacted. This level of control not only enhances the subscriber's experience but also improves engagement by ensuring that recipients are receiving information that is relevant and interesting to them.

When subscribers have the ability to customize their preferences, it can lead to Higher retention rates and lower unsubscribe rates, as individuals feel more in control of their communications with the organization. This aligns with best practices in permission-based marketing, fostering a more positive relationship between the business and its audience.

The other options focus on different functionalities that do not relate to the specific role of a subscription center in managing subscriber preferences. Hence, the emphasis on communication preference management is what makes the correct answer stand out clearly.