Match the following Linux kernel virtual hierarchies with their content:
1) /proc a) Per process information directories and other tunables
2) /sys b) RAM drive for POSIX shared memory operations
3) /dev/pts c) Kernel object data structures
4) /dev/shm d) Auto-ownership of terminals (ttys)
A.
1-a, 2-c, 3-d, 4-b
B.
1-b, 2-a, 3-d, 4-c
C.
1-a, 2-b, 3-d, 4-c
D.
1-b, 2-a, 3-c, 4-d
Explanation: