This is a simple GMAT sentence correction question. The sentence is intending to say that currently know a certain amount of information about the growth rate and annual consumption percentage. And that certain amount of information is allowing the economists to make certain predictions about the economy.
Now, if the economists want to get more precise about their forecasts and predictions for hte future of the economy, they're going to need more information than the informtion that they currently have available.
So the question here is - how do you phrase or word this sentence to convey that meaning but keep it to 1 sentence?
Remember, the phrase "To arrive at more precise economic predictions" - already implies that you are in the PRESENT tense framework but looking into the future. If you understand the GMAT Pill Framework #9: Past-Present-Future, you'll know that you only have a few options.
Moreover, note that the phrase " To do [X]" - has an implied conditional tone.
source: GMAT Pill
Like this GMAT question? Share and challenge your friends!
GMATTM is a registered trademark of the Graduate Management Admission CouncilTM. The Graduate Management Admission CouncilTM does not endorse, nor is it affiliated in any way with the owner or any content of this web site.