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The total annual vector population in Ghana, after decreasing steadily

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The total annual vector population in Ghana, after decreasing steadily  [#permalink]

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New post 17 Aug 2018, 01:11
3
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

66% (01:15) correct 34% (01:06) wrong based on 128 sessions

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The total annual vector population in Ghana, after decreasing steadily for the last decade, hit a low in 2004; since that time, the anopheles larval count has begun increasing steadily, prompting the vector control authorities spring into action.

A. hit a low in 2004; since that time, the anopheles larval count has begun increasing steadily, prompting

B. hit a low in 2004, but with the anopheles larval count steadily increasing, prompting

C. had hit a low in 2004; since that time, the steady increase of the anopheles larval count, which prompted

D. hit a low in 2004, and, in the case of anopheles larval count, it has increased steadily since, prompted

E. hit a low in 2004 but has since began increasing for anopheles larvae, and this prompted

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Re: The total annual vector population in Ghana, after decreasing steadily  [#permalink]

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New post 17 Aug 2018, 01:42
Sweet and simple A. Since... Has begun... Prompting.

C, D, and E are out because they change the meaning by not showing causality. (, prompting)

B has no verb.

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Re: The total annual vector population in Ghana, after decreasing steadily  [#permalink]

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New post 24 Sep 2018, 04:29
But after the semi-colon(;) , it should be an independent clause and, how can "since that time" make the clause independent, rather it makes it dependent? Can somebody please explain.
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Re: The total annual vector population in Ghana, after decreasing steadily &nbs [#permalink] 24 Sep 2018, 04:29
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