demographers problem

This topic has expert replies
Master | Next Rank: 500 Posts
Posts: 115
Joined: Fri Dec 26, 2008 2:18 am
Location: india
Thanked: 3 times
Followed by:1 members

demographers problem

by geet » Sun Jul 05, 2009 9:48 am
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

A. have to know a great deal more than now about the social and economic
B. have to know a great deal more than they do now about the social and economical
C. would have to know a great deal more than they do now about the social and economical
D. would have to know a great deal more than they do now about the social and economic
E. would have to know a great deal more than now about the social and economic


Guys do tell me why "economic" is used rather than "economical"
Source: — Sentence Correction |

• Page 1 of 1