In 1964, radio astronomers Arno Penzias and Robert Wilson began using a highly sensitive horn antenna to measure cosmic signals. They soon detected a persistent static buzz that interfered with their data. Hoping to eliminate the interference, they painstakingly cleaned the instrument. Ultimately, [this] proved to be the cosmic microwave background radiation, the first physical evidence of the Big Bang.
Which of the following choices best clarifies the reference of the underlined word in the passage?
- ANO CHANGE
- the staticCevap
- Cthey
- Dit
Cevap
the static
Replacing the underlined word with the specific noun phrase 'the static' resolves the vague pronoun reference. It clearly and precisely specifies what proved to be the cosmic microwave background radiation, correcting the error without introducing any new issues.
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Anahtar Kavram
Pronoun Clarity and Reference
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