Which three are true?

Examine the following command sequence:

Which three are true?

A.
User jill, a member of the group other, can do a long listing (1s -1) of user jack’s home directory.

B.
User oracle, not a member of the group other, cannot execute the shell script scriptfile.

C.
User jill, a member of the group other, can make a copy of testfile in dira.

D.
User jill, a member of the group other, can edit the data content of testfile.

E.
User jill, a member of the group other, cannot delete testfile.