Which two are true？ （）

• A、 Tag files can only be accessed using a tagdir attribute.
• B、 The sort.jsp page translates successfully and invokes the tag defined by beta.tag.
• C、 The sort.jsp page produces a translation error because a taglib directive must always have a uri attribute.
• D、 Tag files can only be placed in /WEB-INF/tags， and NOT in any subdirectories of /WEB-INF/tags.
• E、 The tagdir attribute in line 2 can be replaced by a uri attribute if a TLD referring to beta.tag is created and added to the web application.