krndatta wrote:
EducationAisleCan you throw some light on options B and D.
Why is ,causing wrong here?
Not able to understand the solutions above.
Hi
krndatta, "present participial" phrase (
causing...in this case) preceded by a comma, generally modifies the
subject of the preceding clause.
In this case, the subject of the preceding clause is
experimental subjects. Hence, B and D convey the sub-optimal meaning that
experimental subjects caused only a mild illness (while as per the intended meaning, "cowpox" caused only a mild illness).
Following construct would be better (though would slightly change the meaning):
if cowpox were deliberately injected into experimental subjects, causing only a mild illness...p.s. Our book
EducationAisle Sentence Correction Nirvana discusses
"present participial phrases", their application and examples in significant detail. If you or someone is interested, PM me your email-id; I can mail the corresponding section.
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Thanks,
Ashish
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