A prepositional phrase contains a preposition and usually a noun. Your answer would be the first choice.
example:
I went over the hill. "Over the hill" is a prepositional phrase.
The buy local ( produce, food, goods ) movement encourages consumers to chase goods that are produced nearby to save fossil fuels.
coordinating. The coordinators are For, And, Nor, But, Or, Yet, and So
I believe that the answer to the question provided above is that the central conflict leads Millicent to change because of the the happening stated into the above statement.
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