• AI is now being used to analyze industrial data, optimize processes, and predict energy usage patterns. This allows for targeted interventions to reduce overall consumption.

• AI can now generate more creative and coherent text formats compared to 2020. While still under development, some AI-generated content can be quite engaging, blurring the lines between human and machine creation.

• AI has become a powerful tool in medical diagnosis. AI algorithms can analyze vast amounts of medical data, identify complex patterns, and assist healthcare professionals in diagnosis and treatment planning.

• Text-to-speech conversion using AI continues to be a well-established technology. AI can now generate natural-sounding speech with various accents and emotions, making it a valuable tool for various applications.

• While significant wireless transmission of electricity over long distances remains a challenge, there has been progress in short-range wireless charging and localized energy transfer using AI-powered systems.

Note: From the current status of AI development, all the listed applications of AI are feasible. However, this question was asked by the UPSC in 2020 when Generative AI was yet to become mainstream. UPSC's official answer key gave 'B' as the correct answer.