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Research is being carried out to improve the current typhoid fever
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carma19
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Research is being carried out to improve the current typhoid fever [#permalink] New post  01 Apr 2020, 23:44
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A
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E

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65% (01:13) correct 35% (01:13) wrong based on 237 sessions

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Research is being carried out to improve the current typhoid fever treatment, the occurrence of which has however been significantly controlled in rich countries by just improving water sanitation.

(A) treatment, the occurrence of which has however
(B) treatment; the occurrence of which has, however,
(C) treatment, however the occurrence of typhoid fever has
(D) treatment, where the occurrence of typhoid fever has, however,
(E) treatment; the occurrence of typhoid fever has, however,
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carma19
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Re: Research is being carried out to improve the current typhoid fever [#permalink] New post  01 Apr 2020, 23:48
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OFFICIAL EXPLANATION
Error Analysis
Modifier Error:
It is not clear what which refers to.
Logically, it should refer to typhoid fever, but it could refer to treatment as well.
Expression Error:
The word however cannot be used in a dependent clause.
Meaning Analysis
Studies are being carried out with the intent to improve the present treatment for typhoid fever. However, the incidents of typhoid fever have been significantly controlled in rich countries by only improving the water sanitation.

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Lenel
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Research is being carried out to improve the current typhoid fever [#permalink] New post  01 Apr 2020, 23:53
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'However' should be set off by commas on both sides. When it's at the beginning of a clause, it just needs a following comma.[/b] By this rule, A and C are eliminated.
'which' in B can refer to either Research or Typhoid Treatment which is ambiguous. Eliminate B
Between D and E, D can be eliminated for the usage of 'where' which doesn't refer to any location here.
E is the answer
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anisinghal
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Research is being carried out to improve the current typhoid fever [#permalink] New post  02 Apr 2020, 04:36
two independent clause should be separated by semicolon not by comma. hence, E is the correct answer.
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Ranasaymon
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Research is being carried out to improve the current typhoid fever [#permalink] New post  06 Jul 2020, 22:09
Options A and B are incorrect because the occurrence of which can logically modify both typhoid fever and typhoid fever treatment,thus resulting in pronoun ambiguity.

Option C is a run on sentence because 'however' is not a co-ordinating conjunction and can not connect two IC.

In option D, the use of 'where' is incorrect as there is no physical location here.

Option E is the correct answer. (IC;IC) :)
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