Which two options are primary elements of a tenant? (Choose two )

While security is managed, explicit 'firewall rules' are implemented through contracts between EPGs in ACI, rather than being a distinct primary element of a tenant.

Contracts are essential ACI constructs that define the communication and security policies between Endpoint Groups (EPGs), controlling which EPGs can communicate and what services are permitted.

An Endpoint Group (EPG) is a fundamental ACI object representing a collection of endpoints that share common policy requirements, serving as the grouping mechanism for applying network and security policies within a tenant.

Access policies in ACI define infrastructure-level configurations for physical ports and VLANs, belonging to the fabric infrastructure configuration rather than being primary elements of a tenant.

'Switch domains' is not a standard ACI term for a primary element within a tenant; ACI uses constructs like Bridge Domains and EPGs for tenant network segmentation.