an organization plans to improve its email securit stance by deploying SPF$.$ What is the benefit of this approach?

A$.$Sensitive emails wil be digitall signed using the recipients shared public key

B$.$ Locallu installed agents will be used to verify compliance with central poloices

C$.$ The IP addresses of source SMTP servers will be checked for authorization

D$.$ Emails will be scanned for senistive content and the content will be removed