Final answer:
Maria is employing digital media in a commercial context to create a promotional video ad for her company, aiming to engage with potential customers and boost sales.
Step-by-step explanation:
Maria is using digital media for a commercial purpose by recording audio for a video ad on her company's website.
The use of digital media in this context serves to promote products or services to potential customers, increase brand awareness, and ultimately drive sales.
This incorporates various forms of electronic communication, such as websites, podcasts, and digital video, to deliver targeted and interactive advertising content.