Which of them is NOT correct?

LDAP-based authentication against a newly-installed LDAP server does not work as expected.
The file /etc/pam.d/login includes the following configuration parameters. Which of them is NOT
correct?

A.
password required /lib/security/pam_ldap.so

B.
auth sufficient /lib/security/pam_ldap.so use_first_pass

C.
account sufficient /lib/security/pam_ldap.so

D.
password required /lib/security/pam_pwdb.so

E.
auth required /lib/security/pam_ldap.so