The correct answer is: [A]: "change".
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<u>Note</u>: Think of the word: "synthetic" (materials);
"photosynthesis" ; "synthesize" ('putting together' —which involves a 'change').
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The chest, on that day of moving, had been set in the new attic, which was smaller than the other, and less frightening, perhaps because gaps in the cedar-shingled roof let dabs of daylight in. When the roof was being repaired, the whole space was thrown open to the weather. This is the answer.
About 90% of all stars are in the main sequence including our very own sun. They are the stars that are going through nuclear fusion, turning hydrogen atoms into helium.
