Which filesystem can be used on a Linux operating system?

A.
EXT3

B.
NTTFS

C.
EVFS

D.
HFS

Explanation:

Source: http://www.cyberciti.biz/faq/linux-how-to-determine-find-out-file-system-type/
Linux supports numerous file system types. For example it supports Ext2,. Ext3, NFS, FA16,
FAT32, NTFS, Sysfs, Procfs etc. To determine the file system type or to find out what type of file
systems currently mounted you need to use command called mount or df.
But question asks what CAN be used on a Linux OS.