The correct sequence of the four key concepts of digital media is:  

(A) Multimedia, interactivity, automation and ethereal quality 

(B) Ethereal quality, interactivity, automation and multimedia 

(C) Automation, ethereal quality, interactivity and multimedia 

(D) Interactivity, ethereal quality, multimedia and automation

Correct Ans: (B)

Explanation:
The correct sequence of the four key concepts of digital media is as follows:

1. Ethereal Quality: Digital media is characterized by its intangible nature. Unlike traditional physical media, digital content exists in a virtual format, which allows it to be transmitted instantly across platforms. This quality enables digital media to be accessed globally and effortlessly, breaking the barriers of time and space.
2. Interactivity: Interactivity is a defining feature of digital media, allowing users to engage actively with content. This concept enhances user experiences by enabling direct participation, such as clicking, commenting, or navigating content. Unlike traditional media, which offers one-way communication, digital media fosters two-way interaction.
3. Automation: Automation streamlines the creation, dissemination, and management of digital content. With advancements in technology, processes such as content scheduling, algorithm-driven recommendations, and real-time updates occur with minimal human intervention. Automation makes digital media more efficient and adaptive to user preferences.
4. Multimedia: The integration of various forms of media, such as text, audio, video, and graphics, defines multimedia. Digital platforms combine these elements seamlessly, creating rich, immersive experiences for users.

Thus, the sequence—Ethereal Quality → Interactivity → Automation → Multimedia—highlights how these key concepts work together to shape the unique characteristics of digital media.