Hi Ashu

I would request you to put source to every question you put in the forum. I simply dont want to waste time on question from banned soucres, neither you would like to do so. Therefore make sure the source from where you are practising has some credibility in GMAT market.


IMO C

why :- Colonial period's 50 percent mortality rate is suggesting that the colonial period's mortality rate was 50%, where as it should be Children mortality rate during the colonial period.

Eliminate A,B,E

MGMAT's rule for the same, whenevr you have any place, time in the prep phrase of a noun, you cannot take it in front of a noun and make it noun adj. Same is the case applying above.

D is awkward and constructed in the passive voice. Eliminate.

You are left with C, which uses the correct way to describe time in the prep phrase.

Ashujain wrote:After the Colonial period's 50 percent mortality rate, life expectancy improved for children, but as late as the nineteenth century about one child in three died before reaching the age of six.
(A) After the Colonial period's 50 percent mortality rate, life expectancy improved for children, but
(B) Even though children's life expectancy, which improved over the Colonial period's 50 percent mortality rate,
(C) Although life expectancy for children improved after the Colonial period, during which the mortality rate was 50 percent,
(D) While there was an improvement in life expectancy for children after the 50 percent mortality rate of the Colonial period, still
(E) Despite children's life expectancy improvement from the Colonial period's 50 percent mortality rate.

OA: C