Answer:
A. The goal of why you’re sending it and then the carefully designed components layered on top of each other.
Step-by-step explanation:
Mailing has been since time memorial, it is a way of sending and delivering our thoughts as a message, through small and great distance to people that needs them or we needs to get across to.
Emails are electronic mails, sent digitally within and across a network of electronic devices. Sending an email has to do with the questions "for whom and why", why the email is been sent and the systematic structure of the message sent is an important component of emailing.