Multi-select problem: How does the next paragraph end?

How to report phishing
Refuse to open suspicious emails.
Check email addresses carefully and don't open an email that looks suspicious. Be suspicious of emails from people or organizations you do not know or have not done business with.

Options:
[a]. Visit the place where the email was from and check for anonymous emails, but don't open any of them until an official check or update is made. Never sign any email with someone you do not know unless you go the route described in part 2.
[b]. You can also identify phishing emails by the messages contained in the body of the email. They often claim that your account has been compromised and invite you to click on a link to confirm your identity.
[c]. Report phishing one name at a time. If you find something suspicious in an email, report it as quickly as possible to the company.
[d]. Read the sender's email and see what it means. If you see vague information, such as " i am your superior, " then it may be a legitimate scam.
[b].