Phishing and Spear-Phishing Attacks Have Been Occurring More Frequently Against

Multiple Choice

Phishing and spear-phishing attacks have been occurring more frequently against a company's staff. Which of the following would MOST likely help mitigate this issue?

A) DNSSEC and DMARC
B) DNS query logging
C) Exact mail exchanger records in the DNS
D) The addition of DNS conditional forwarders