Redwood Sales - Activity and Interaction access control

Summary:

What's the access control for Activity and Interaction? Are they treated like master data (visible to all) or do they inherit the visibility based on the parent account and/or opportunity?

Content (please ensure you mask any confidential information):

Are activities (task, appointment) and interactions (email) visible to everyone, or do they inherit/follow the visibility of the associated parent, e.g. Account, Contact and/or Opportunity?

Version (include the version you are using, if applicable):

26A