In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives. The promise of nuclear power has so __________ outweighed all of these concerns, and India has reason to be proud of its technology and determination to look for non-fossil _______________ in its energy planning. However, _________ rapid progress in technology in other ______________ energy sources such as wind and solar power, the collapse of oil prices and the expansion in gas projects as a viable and clean alternative, that promise ______________. look for non-fossil _______________ in its energy planning.

Correct Answer: alternatives