samsung1234
A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.
(A) reduced the amount of phosphates that municipalities had been allowed to dump
I chose A because my initial thought was that municipalities were allowed to dump a certain amount prior to 1972 (hence why I OKd the use of 'had been'), and in 1972, this was reduced. Clearly the OA states that this is incorrect, but can someone confirm? How do I make sure that I don't fall into this trap? Because to me it makes perfect sense for something to be allowed at some point, and then a subsequent agreement reducing it.
In other words, the 1972 agreement has reduced the amount that municipalities were previously allowed to dump. Or is this illogical because it implies that the action of dumping, which occurred before 1972, has ended?
Good question, one that gets to the heart of what makes SC so challenging. To see why the use of the past perfect in (A) doesn't make sense, consider two examples, one logical, one not.
By 2016, Tim had been cut by every team in the G-league, some of which he never even attempted to play for.
Here, we have a past action -- Tim getting cut -- occurring before 2016, which is also in the past. Maybe he was cut in 2013 and 2014, etc. This makes sense.
But now look at the following:
In 2014, Tim was cut from the Santa Cruz Warriors, a move that had reduced his playing time.
Because of the use of the past perfect, the action, "had reduced" must have occurred
before 2014. But that doesn't make any sense. How could Tim's getting cut in 2014 have reduced his playing time in 2013 or 2012? It couldn't have. Rather, the move would impact his playing time
going forward.
Same wonky logic in this example. The agreement happened in 1972. But if it reduced the amount of phosphates towns
had been allowed to dump, then we're somehow reducing the amount that was allowed in 1971 or 1970 or earlier. We can't retroactively change what was once allowed! We can only impact the amount allowed going forward from the time of the agreement. So, the use of the past perfect in (A) is incoherent.
I hope that clears things up!