DexterZabula
Hey,
The prompt goes - If the action is completed but its effect are still lingering, we use present perfect.
Now, I agree, the "action of increase" did get complete in 2002.
But because of that "California has come more and more to rely", the effect is still going on, isn't it?
May be, GMAT retired this question for this confusion only !
Hello,
DexterZabula. The incomplete action or effect you are referring to is California relying more and more on personal income taxes for its revenues,
not the action or effect of the timeframe 1962 to 2002. Regardless of what happened within that span of years, the years themselves represent the bookends of a definitive period of time. The only way we could use the present perfect with such a construct is if the latter year mentioned were understood to be the present year. Compare:
1) From 1980 to 2000, global wealth
increased...
2) From 2000 to 2020, global wealth
has increased...
I suspect the question was retired after having seen action many times over and tricking many a test-taker. I am sure there are questions within the current pool that test this very concept or split.
I hope that helps clarify any confusion you had. If not, I would suggest reading over the entire thread and seeing if any responses resonate with you. Good luck with your studies.
- Andrew