Regarding the replacement of parts, which of the following descriptions is correct? (Multiple Choice)

Regarding the replacement of parts, which of the following descriptions is correct? (Multiple Choice)
A . Process of replacing the functional module X Put on protective gloves – disconnect the mains front input circuit breaker of the functional module – remove the old functional module – install the new functional module-close the AC front input circuit breaker of the functional module – take off Gloves
B . The process of removing the functional module. Record the cable connection position of the functional module – use a flat-blade screwdriver to pry off the fastening lock on the quick-plug terminal. Remove the quick-plug terminal – remove the interface cables in turn, and do insulation protection to remove the old functional modules
C . The process of removing the lithium battery module. Record the cable connection position of the lithium battery module + use a flat-blade screwdriver to pry off the fastening lock on the quick-plug terminal. Remove the quick-plug terminal – remove the interface cables in turn. And do a good job of insulation protection – remove the old lithium battery module
D . The process of replacing the lithium battery module, wear protective gloves – remove the old lithium battery module H install a new lithium battery module take off the protective gloves

Answer: ABCD