The IT department at Northern Trail Outfitters would like to receive email notifications once an automation has completed. How should the automation be configured?

While testing an email with dynamic content in Content Builder, proofs of five content variations need to be reviewed directly in the inbox of a marketer's quality assurance specialist and the marketing manager. A data extension named 'myTestData' contains only the variations needed.
Which method should be used?

An email marketer has been tasked with increasing open rates on a weekly newsletter that currently uses a consistent, identifiable subject line: "NTO Weekly: Topics of Interest this week." Which two best practices should the marketer use to make the subject line more effective? Choose 2 answers

NTO used to maintain enterprise wide opt out for two segment of its subscribers stored in data extension, education event and sales what feature should the company used to manage it's opt out strategy

A file is received daily from a data provider to the account SFTP. This file needs to be imported into Marketing Cloud as soon as it arrives. The arrival time of this file varies by several hours from day to day.
What tools should be used to accomplish this?