Which of the following configuration options makes Apache HTTPD require a client certificate for authentication?
A. Limit valid-x509
B. SSLRequestClientCert always
C. Require valid-x509
D. SSLVerifyClient require
E. SSLPolicy valid-client-cert
Which of the following configuration options makes Apache HTTPD require a client certificate for authentication?
A. Limit valid-x509
B. SSLRequestClientCert always
C. Require valid-x509
D. SSLVerifyClient require
E. SSLPolicy valid-client-cert