Which three business requirements development activities are performed in the prepare phase before creating a technology strategy？ （）

• A、 identifying and assessing customer business requirements
• B、 documenting and categorizing customer business requirements in terms of performance， availability， capacity and security
• C、 producing a documented technology strategy
• D、 creating a bill of materials
• E、 presenting documented business requirements to a customer and having the customer validate them
• F、 completing a site survey