You're preparing your first Slack app for publication in the Slack App Directory.

A clear privacy policy is a mandatory requirement for applications listed in what Slack now calls the Slack Marketplace. Slack requires the application's public landing page to provide a clear link to that privacy policy. The policy must explain, at minimum, what third-party data is collected, how that information is used, how long it is retained, and how individuals can request access, transfer, or deletion of their information. It must also provide a means of contacting the service regarding data-related requests. Slack specifically notes that even applications that do not actively use certain received data may nevertheless receive identifiers or other information through platform payloads, and this handling must be disclosed. Bank-account information is not a universal Marketplace submission requirement. A security assessment or penetration-testing report may become relevant for certain applications or review circumstances but is not the general listing requirement represented here. Slack also does not require every Marketplace description to be translated into every supported language. Therefore, B is correct. This belongs to Distribute Your App, specifically Marketplace listing requirements, privacy governance, and public application documentation.