On a system using shadowed passwords, the correct permissions for /etc/passwd are ___ and the correc

On a system using shadowed passwords, the correct permissions for /etc/passwd are ___ and the
correct permissions for /etc/shadow are ___.

A.
rwr, r

B.
rwrr, rrr

C.
rwrr, r

D.
rwrrw,rr

E.
rw, r