Which two statements are true?

Examine the dtrace command: dtrace -n syscall::read:entry Which two statements are true?

A.
This statement fails with a syntax error because no action is defined.

B.
This statement runs successfully with the default action being executed.

C.
The probe name isread.

D.
The probe name isentry

E.
The probe name is not specified in this command, but it is implied through adjacent colons.

F.
This command runs but produces no output; is no predicate to select when the probe fires.