Which two are true？（）

• A、 The prefix ‘java’ is reserved.
• B、 The URI ‘myTags’ must be properly mapped to a TLD file by the web container.
• C、 A translation error occurs because the prefix is considered identical by the web container.
• D、 For the tag usage ， the tag1 must be unique in the union of tag names in ‘myTags’  and ‘moreTags