Quires Regarding "\events" API in Box

Regarding the plan mentioned in the https://www.box.com/pricing/business, we have below queries.

  1. Will the “\events” API availability change as the plan changes ?
  2. List Of Event type will change as per the Plan ?
  3. Will Enterprise events type include user events type ?
  4. What minimum paid account required to access the Enterprise event via “\events” API?