In this scenario, the best form of promotion for Maria to use, in order to control the message that potential customers hear about the Baby Don't Cry doll, is Owned media.
Owned media includes channels that a company owns and has complete control over, such as its website, social media profiles, and email newsletters. This allows Maria to craft and deliver her messages exactly as she intends, without external influence.
Paid media can also help with publicity, but it involves advertising costs and may not provide the same level of message control. Earned media, while valuable, is generated through public relations efforts and can be less controllable because it relies on third-party coverage.