What is the most likely cause of the ACLs ceased to function properly?

After an administrator added comments to each line of the ACLs in slapd.conf, the ACLs ceased to function properly.

What is the most likely cause of this?

A.
Comments cannot be used anywhere in an ACL block.

B.
The comments were not added using the semi-colon (;) character.

C.
Comments cannot be used in the slapd.conf file.

D.
The comments were not added using the pound (#) character.