Which of the following statements is true regarding the following output of xl list:
Name ID Mem VCPUs State Time(s)
Domain-0 0 384 1 r—– 498.7
Debian 2 305 1 –p— 783.5
Slack 6 64 1 -b—- 313.6
CentOS 7 512 2 r—– 455.1

A.
It is necessary to use the xl command to change Slack’s state to running.

B.
CentOS is the domain which has consumed the most CPU time.

C.
The domain with ID 2 uses paravirtualization.

D.
Both Debian and Slack require xl commands to start running.

E.
Slack is idle or waiting for I/O.