To what environment variable will an administrator assign or append a value if the administrator needs to tell the dynamic linker to look in a build directory for some of a program's shared libraries?

LD_LOAD_PATH is not a variable recognized by the Linux dynamic linker and has no effect on shared library resolution.

LD_LIB_PATH is not the correct variable name - the actual name requires the full word LIBRARY, so this misspelled variant is ignored by the dynamic linker.

LD_LIBRARY_PATH is parsed by the dynamic linker (ld.so/ld-linux.so) before the default system library paths such as /lib and /usr/lib. Setting it to a build directory instructs the linker to search there first when resolving shared library dependencies at program startup, which is the standard method for testing in-development libraries without a system-wide install.

LD_SHARE_PATH is not a valid environment variable recognized by the Linux dynamic linker and will not affect shared library searches.

LD_RUN_PATH is a build-time concept that can be embedded into a binary's RPATH by the linker, but it is not a runtime environment variable an administrator can set to redirect dynamic library searches.