The answer is B. It has a check mark by it in the picture.
The stage of a plot that comes directly after a conflict is called a climax --- hope this helps
“The landing and successful return of Apollo 11’s flight to the moon made headlines all around the world. And it could not have been possible without Katherine’s help.”
The answer is: "jacket and tie"
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The other answer choices:
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"package of ties";
"dress suit";
"sweater and skirt set";
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all agree with the verb in the sentence given; because that are in a 'set' or come in a "single unit" and function as a "single noun";
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The phrase: "jacket and tie" are not "grouped together" (e.g. in a "single set or kit") and should take the "plural" form of the verb.