installs a new package

Match the rpm options with their functions:
–I a. replaces any older versions of package with the new package

—–Ub. upgrades packages, but only if an earlier version exists on your system
–Fc. Uninstall the specified package
–ed. installs a new package

A.
1-d, 2-a, 3-b, 4-c

B.
1-d, 2-b, 3-a, 4-c

C.
1-a, 2-c, 3-b, 4-d

D.
1-a, 2-b, 3-c, 4-d

Explanation:
* (1d) rpm {-i | –install} [install-options] PACKAGE_FILE…
This installs a new package.
* (4c) The general form of an rpm erase command is
rpm {-e | –erase} [–allmatches] [–nodeps] [–noscripts] [–notriggers] [–test] PACKAGE_NAME…
*(2b) rpm {-U | –upgrade} [install-options] PACKAGE_FILE…
This upgrades or installs the package currently installed to a newer version. This is the same as
install, except all other version(s) of the package are removed after the new package is installed.
*(3a) rpm {-F | –freshen} [install-options] PACKAGE_FILE…
This will upgrade packages, but only if an earlier version currently exists.