EXT3 Is the Third-Generation Extended File System Commonly Used in the Linux

EXT3 is the third-generation extended file system commonly used in the Linux operating system.  Which of the following statements is correct regarding the EXT3 file system?

A) block is composed of a number of consecutive areas, block number starting from 1, the overall number, grouping
B) Each i node corresponds to a 1GE file or folder, which stores the description file size, file storage location and other information
C) The block group consists of a number of consecutive blocks, the number within the block group is determined by the block size
D) The superblock stores the basic information about the EXT3 file system