• Aerodynamic Characteristics of Darrieus Wind Rotor:
• The Darrieus rotor is a vertical-axis wind turbine (VAWT) featuring curved aerofoil blades resembling an eggbeater:
• Low starting torque: Cannot self-start because at low tip-speed ratios, blade angles of attack stall relative to incoming wind.
• Self-starting: False (requires an auxiliary Savonius rotor or motor to start).
• High operating speed: Operates at high tip-speed ratios ($TSR \gt 4$).
• High aerodynamic efficiency: Can attain power coefficients ($C_p$) exceeding 0.35–0.40, approaching horizontal-axis turbines.
• Conclusion: Correct characteristics are (A), (C) and (E) only (Option 3).

Correct option: (3) (A), (C) and (E) only,

• Statutory and Quality Certifications for Food Products in India:
• BIS (Bureau of Indian Standards): Operates the ISI mark certification, mandatory for packaged drinking water, milk powder, infant formulas, and food colors.
• AGMARK: Directorate of Marketing and Inspection certification under the Agricultural Produce (Grading and Marking) Act, governing quality grading for ghee, honey, spices, pulses, and edible oils.
• FSSAI (Food Safety and Standards Authority of India): Mandatory apex statutory licensing and safety regulatory framework for all food business operators in India.
• (D) '1s' is an invalid non-existent acronym.
• Conclusion: (A), (B) and (C) only (Option 2).

Correct option: (2) (A), (B) and (C) only,