Your company is replacing a high-availability pair of Cisco ASA 5550 firewalls with the newer Cisco ASA 5555-X models. D

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Your company is replacing a high-availability pair of Cisco ASA 5550 firewalls with the newer Cisco ASA 5555-X models. Due to budget constraints, one Cisco
ASA 5550 will be replaced at a time.
Which statement about the minimum requirements to set up stateful failover between these two firewalls is true?

A. You must install the USB failover cable between the two Cisco ASAs and provide a 1 Gigabit Ethernet interface for state exchange.
B. It is not possible to use failover between different Cisco ASA models.
C. You must have at least 1 Gigabit Ethernet interface between the two Cisco ASAs for state exchange.
D. You must use two dedicated interfaces. One link is dedicated to state exchange and the other link is for heartbeats.