|Question 18Verbal

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Having devised an optical spectroscopy technique that allowed researchers to study ultrafast chemical reactions occurring within molecules, known as femtochemistry,       . For this groundbreaking work, he won the Othmer Gold Medal and the Davy Medal from the Royal Society.
Which choice completes the text so that it conforms to the conventions of Standard English?
chemist Ahmed Zewail introduced a new scientific discipline
A
a new scientific discipline was introduced by Ahmed Zewail, a chemist
B
the introduction of a new scientific discipline was initiated by chemist Ahmed Zewail
C
chemist Ahmed Zewail's introduction of a new scientific discipline would be
D