Having analyzed the samples from the meteor, _________
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writingWhich choice completes the text so that it conforms to the conventions of Standard English?
A
the presence of amino acids was confirmed by the geologists.
B
the geologists confirmed the presence of amino acids.
C
it was confirmed by the geologists that amino acids were present.
D
amino acids were confirmed to be present by the geologists.
Correct Answer: B
Choice B is the best answer. The introductory phrase "Having analyzed the samples" describes an action performed by people. "The geologists" is the correct subject.
Choice A is incorrect because "the presence" did not analyze samples. Choice C is incorrect because "it" did not analyze samples. Choice D is incorrect because "amino acids" did not analyze samples.