Which program finds only files that are in your PATH？（）

A. software to predict the location of installed files and directories
B. software to predict the ownership and access rights to files and directories
C. users to predict the location of installed files and directories
D. users to predict how the filesystem should be formatted according to need

A. locate
B. which
C. find
D. query
E. whereis

A. export LD_PRELOAD=/usr/local/lib
B. export LD_LIBRARY_PATH=/usr/local/lib
C. Idconfig /usr/local/lib
D. Idd/usr/local/lib