Although the state had its first woman Police Commissioner more than three decades ago, relentless advertisements and awareness campaigns were needed to make woman police officers more than a rarity in the male-dominated police force.

A. were needed to make woman police officers more than a rarity in the male-dominated police force
B. were needed in making woman police officers more than a rarity in the male-dominated police force
C. have been needed to make woman police officers more than a rarity in the male-dominated police force
D. had been needed in making woman police officers more than a rarity in the male-dominated police force
E. have been needed to make woman police officers more than a rarity in the police force that is male-dominated.

Source: Experts Global
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Were needed means now we don't need to. Using simple past and past perfect is not sensical in this context. Eliminate A, B, D

Between C and E, it is much clear to say - - > male dominated police force THAN police force that is male-dominated

Imho, answer is C

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Developing a sense, a sort of six sense to the wordiness is something that comes you with the experience and years of English. Is not that comes out in a snap

C. have been needed to make woman police officers more than a rarity in the male-dominated police force



E. have been needed to make woman police officers more than a rarity in the police force that is male-dominated.

Seein this way I do think is quite clear where the wordiness lays.

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See the first part of my reply.

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COLLECTION OF QUESTIONS AND RESOURCES
Quant: 1. ALL GMATPrep questions Quant/Verbal 2. Bunuel Signature Collection - The Next Generation 3. Bunuel Signature Collection ALL-IN-ONE WITH SOLUTIONS 4. Veritas Prep Blog PDF Version 5. MGMAT Study Hall Thursdays with Ron Quant Videos
Verbal:1. Verbal question bank and directories by Carcass 2. MGMAT Study Hall Thursdays with Ron Verbal Videos 3. Critical Reasoning_Oldy but goldy question banks 4. Sentence Correction_Oldy but goldy question banks 5. Reading-comprehension_Oldy but goldy question banks