The word "multifaceted" underlined in Paragraph 3 means______.
A. versatile
B. complex
C. many-sided
D. multitude
The research became known as the "Hawthorne effect" because______.
A. it was the name of the plant where the study was conducted
B. it was the name suggested by the Harvard researchers
C. it was the name of the principal experimenter
D. There were Hawthorne plants growing at Western Electric where the study was conducted
What does the author mean by the statement "children's literature began to bloom" underlined in Paragraph 2？
A. Quality illustrations and attractive formats made books more appealing.
B. Illustrations often included flowers.
C. It became more varied and attractive.
D. It became more numerous and popular.
The word "them" underlined in Paragraph 2 means______.
A. assumptions
B. leaders
C. exceptions
D. traits
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