Which of the sentences below best expresses the essential information in the highlighted sentence in the passage？ Incorrect choices change the meaning in important ways or leave out essential information.
A. Thanks to the public outreach programs initiated by marine organizations, new algae growth has slowed in recent years.
B. For now, all that can be done is to prevent the establishment of new algae colonies and raise awareness about the threat.
C. Anyone who encounters the algae in the wild should exercise extreme caution and report the sighting to the authorities immediately.
D. Unfortunately, independent scientists and research organizations have so far been unable to find a solution to the problem of the invasive algae.
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Why does the professor discuss the instruments of the orchestra for Monteverdi's opera Orfeo？
A. To compare the Baroque orchestra with the orchestra of today
B. To give examples of instruments that Monteverdi invented
C. To illustrate how different instruments helped to tell a story
D. To explain why the orchestra was the center of Baroque music
The word entailed in the passage is closest in meaning to
A. founded.
B. contained.
C. required.
D. allowed.
What aspect of adulthood does the professor mainly discuss？
A. Biological changes related to the aging process
B. Changes in roles and responsibilities during adulthood
C. Differences between childhood and adulthood
D. Cultural differences in attitudes toward older adults
LiSten again to part of the lecture．Then answer the question. What does the professor imply about the public works projects of the Romans？
A. The arch contributed to the success of these projects.
B. The Romans were the first society to work on large projects.
C. Each project developed a different style. of architecture.
D. The projects benefited only the wealthy citizens of Rome.
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