Solar technologies generate a majority of the power used during space missions, keeping life support and other vital spacecraft systems working. Solar power is so critical that NASA spends considerable time and money to make solar panels must more efficient, lightweight and affordable.
Answer:
"People can change for the better".
Explanation:
The excerpt supporting the theme i. e. "people can change for the better" because in the story of "a reformation" written by o' Henry shows that a person who commits many crimes can change himself if he decided to change. People are able to change themselves for their beloved just like in the story of reformation in which a person named Jimmy Valentine changed himself for his beloved.
Alan Sklar should be the correct option
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