alice is the webmaster for a small website2 whose files are contained under ~/WWW. The website is expanding, and now a few people will maintain the site. The system administrator created a group, webadmin, containing users (currently, alice and chuck) who should be able to modify the website. Adjust the permissions for ~/WWW and everything contained in it, so that:
-File owner permissions are unchanged.
– Anyone in group webadmin can change into, and can create, delete, and list items in, ~/WWW or any of its subdirectories.