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 GlobalWere 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