A network architect is choosing fabric module for an HP 10500 Series Switch. Which factors affect the choice? 

The environment in which the switch will be installed and the direction of the airflow 

The number of IPv4 and IPv6 routes that the switch must support in its routing table 

The type of I/O modules and whether full bandwidth must be supported on all ports at the same time 

The type of management modules and whether these modules operate in hot-standby mode