After Downloading an Installing Any Shared Libraries, What Should Be

Multiple Choice

After downloading an installing any shared libraries, what should be done to ensure ​the list of shared library directories and the list of shared libraries are updated?

A) ​Check the /lib, /lib64, /usr/lib, or /usr/lib64 directories for the library.
B) ​Run the ldconfig command.
C) ​Run a program that uses the shared libraries.
D) ​Perform a system restart.