Which set of approaches best answers the objective on connecting Developers directly to customers and users?

• AThe product owner interviews users and writes detailed requirements so Developers have everything they need
• BA monthly report on user satisfaction is circulated to the Developers
• CDevelopers attend user interviews as listeners, observe real work in its own setting, and meet users at the Sprint Review, with raw support tickets and session data available to them rather than summarised
• DDevelopers are given access to the CRM so they can read account records