What is definition of Spear Phishing?a$.$Insiders who are uneducated on potential security threats or who simply bypass general security procedures to meet workplace efficiency.b$.$An attacker targets high profile executives like CEOs, CFOs, politicians, and celebrities who have complete access to confidential and highly valuable information.c$.$A targeted phishing attack aimed at specific individuals within an organization.d$.$The attacker redirects web traffic to a fraudulent website by installing a malicious program on a personal computer or server.