Which system administration command you can use to update Id.so.cache after the installation of new shared libraries?

Which system administration command you can use to update Id.so.cache after the installation of new shared libraries?

A.
Idconfig

B.
libpath

C.
newlibs

D.
Idd

Explanation:
ldconfig creates the necessary links and cache to the most recent shared libraries found in the directories specified on the command line, in the file /etc/ld.so.conf, and in the trusted directories (/lib and /usr/lib). The cache is used by the run-time linker, ld.so or lD.linux.so. ldconfig checks the header and file names of the libraries it encounters when determining which versions should have their links updated.