Which one of the following statements best reflects the central idea of the passage ?
aEconomies of scale is essential for transition to green growth.
bModern technological progress is intensely linked to path-dependent innovations.
cCountries with large economies are in a better position to adopt green technologies.
dTiming plays a crucial role in the case of green technology development.
UPSC's 2025 key was reported published in May 2026, but no file was found on upsc.gov.in or in the Wayback Machine. The 2025 papers can be browsed, not scored.