The term 'Alternative Energy Option' can be summarized by the solution to the crossword, 'SOLAR', which is a five-letter word. SOLAR energy is a renewable energy source that is generated from the sun's radiation and converted into electricity or used to heat water or air. It is a clean and sustainable energy source that does not produce any emissions or pollutants. SOLAR energy is becoming increasingly popular as an alternative energy option due to its cost-effectiveness and environmental benefits.