$.$ Users in your organization have reported receiving a similar email from the same sender$.$ The

email included a link mentioning that every employee in your company needs to click the link to

participate in the required survey. However, after recent training on emerging threats, all the

users chose not to click the link. Security investigators determined the link was malicious and

was designed to download ransomware. Which of the following BEST describes the email?

a$.$ Phishing

b$.$ Spam

c$.$ Spear phishing

d$.$ Vishing