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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2. Outlines are a tool to help writers, but are not necessary to create a well- organized, logical, artfully crafted essay
The correct choice to select is B) Olympiad; however,
A previous version of this had the incorrect answer.
The subordinate clause is a noun hope this helps.