Which three statements are true about the built-in shell variables?

Which three statements are true about the built-in shell variables? (Choose three.)

A.
The $ variable stores true and false values.

B.
The $* variable stores all the command-line parameters passed.

C.
The $# variable stores the total number of command-line parameters.

D.
The values for these variables are retained in the session until it is reset.

E.
The $n variable can store n number of positional command-line parameters.