A user goes to merge PDF files using the $/$usr$/$bin$/$pdfunite utility and it does not work. You recently updated the system and suspect the application had ambrary get updated. Before searching the package management $log$ files for the updated library names, you must find the libraries used by this utility. Which command should you issue?

A Idd $/$usr$/$bin$/$pdfunite

B grep pdfunite $/$etc$/$yum$.$repos.d$/*.*$

C grep pdfunite $/$etc$/$zypp$/$repos$.$d$/*.*$

D grep pdfunite $/$var$/$log$/$apt$/$history$.$log

E rpm $-$ q pdfunite $--$last