Context: A market newsletter is a form of marketing for the information age . Email marketing is a vital form of marketing for businesses to reach a wider consumer base , especially businesses which deal exclusively online . Email marketing is a direct form of marketing that utilizes email as a means of communicating to the consumer audience . The marketing is used to communicate commercial or fundraising messages to these consumers .
Question: What may be a good reason to use email marketing ?
Option 0: To reach many customers .
Option 1: For smear campaigns .
Option 2: To collect customers ' data .
Option 3: To send out novels .
Answer: 0