Answer:
B. E-mail marketing messages are effective in reaching the desired target market and result in low costs.
Step-by-step explanation:
E-mail marketing is the act of sending customised mail advertising a product or service through the email address of targeted people.
Most times, corporate business or individual business owners form a mailing list from asking potential customers to input their email addresses for updates about the particular product or service.
This method of marketing is very effective because it is aimed at a target audience and is low cost. Each person that receives the advertising mail was at once point or another interested in that particular product or service. So, the mails don't get sent to people that have no interest in such product or service and because the audience is a target audience and in a mail listing, the cost is relatively cheap.