You want to create a valid directory structure for your Java EE web application， and your application usestag files and a JAR file. Which three must be located directly in your WEB-INF directory（NOT in asubdirectory of WEB-INF）？（）
- AThe JAR file
- BA directory called lib
- CA directory called tags
- DA directory called TLDs
- EA directory called classes
- FA directory called META-INF