Answer : 
                                               
                                                                                                                  - There must be at-least two cloud connectors in a cloud resource location
 
                                               Explanation : 
                                               
                                           Two cloud connectors are must in a resource location as citrix updates cloud connectors one-by-one and during up-date process the cloud connector is not operational,  so for HA and to avoid downtime, two cloud connectors are recommended by citrix.