Which Citrix ADC Monitor Can a Citrix Administrator Use to Check

Which Citrix ADC monitor can a Citrix Administrator use to check the authentication service of the Active Directory (AD) domain controller?

A) An LDAP monitor with the LDAP Script Name, Configured Base DN, Bind DN, Filter, Attribute and Password parameters in the basic parameters.
B) A ping monitor with the IP address of the AD domain controller in the special parameters
C) A MYSQL-ECV monitor with the Base DN, Bind DN, Filter, Attribute, and Password parameters configured in the basic parameters
D) A TCP monitor with the LDAP Base DN configured in the basic parameters.