Which of the following is the BEST option to resolve the boar’s concerns for this email migration?

The Chief information Officer (CIO) asks the system administrator to improve email security at the company based on the following requirements:

* Transaction being requested by unauthorized individuals.

* Complete discretion regarding client names, account numbers, and investment information.

* Malicious attackers using email to malware and ransomeware.

* Exfiltration of sensitive company information.

The cloud-based email solution will provide anti-malware reputation-based scanning, signature-based scanning, and sandboxing .

Which of the following is the BEST option to resolve the boar’s concerns for this email migration?
A . Data loss prevention
B . Endpoint detection response
C . SSL VPN
D . Application whitelisting