A UNIX user named Bob wants to replace his chess program with a new one， but he is not sure where theold one is installed.
Bob is currently able to run a Java chess program starting from his home directory /home/bob using thecommand：
java -classpath /test：/home/bob/downloads/*.jar games.
Chess Bob’s CLASSPATH is set （at login time） to：
/usr/lib：/home/bob/classes：/opt/java/lib：/opt/java/lib/*.jar
What is a possible location for the Chess.class file？（）
