Which Security Issues Exist for Most Publicly Available Vagrant Boxes

Multiple Choice

Which security issues exist for most publicly available Vagrant boxes?

A) They accept SSH logins from the user vagrant with the password vagrant . They accept SSH logins from the user vagrant with the password .
B) They accept SSH logins from the user vagrant with a publicly available SSH key pair. with a publicly available SSH key pair.
C) The vagrant user can use sudo to obtain root privileges without additional authentication. The vagrant user can use sudo to obtain root privileges without additional authentication.
D) Their whole file system, including configuration files, is writable by any user, including vagrant . Their whole file system, including configuration files, is writable by any user, including
E) They export their file system via NFS with full write permissions without any additional restrictions.