An administrator is adding several LDIF files to the directory with slapadd and the new entries are not displayed

when ldapsearch is used.
Assuming that there is no database corruption, what is the most appropriate solution to the problem?

A.
Run ldaprefresh_all

B.
Run slaprefresh_all

C.
Stop the slapd process, run slapindex and then correct the entries using slap_vaccum

D.
Stop the slapd process and add the files again with slapadd