UNSTOPPABLE12
GMATNinjaHello GMATNinja would you like to shed some light over here?
A prompt question regarding this SC problem and specifically about answer choice D, is the use of past perfect the best option (wouldn't simple past be much better)? We have an "earlier" that explains the order of elements and as far as I know , whenever the time order is obvious the use of past perfect is redundant (I'm not sure whether it could be even considered wrong)
You’re right to point out that the past perfect is for talking about something that happened in the past BEFORE something else. For example: “I had already eaten the cake when she got home.” She got home AFTER the cake had been eaten.
In choice (D), the word “earlier” helps us understand WHEN the sales were so bad—they were so bad a year
earlier. Even though the time marker AND past perfect might seem redundant, it's actually totally fine to use both.
In fact, the past perfect helps clarify the timing of the actions in choice (D). If you have the past simple (“because their sales of a year earlier
were so bad as because shoppers were getting a head start…”), it's somewhat ambiguous when the shoppers had their head start--did they have it the year earlier too?
Take a look at this stripped-down version of (D):
“Retailers reported moderate gains in their November sales because shoppers were getting a head start on buying their holiday gifts.”
- Notice that the shoppers got a head start in November of the current year.
- But the bad sales happened a year before that.
Looking back at the full sentence, the timing of the two actions in (D) would be pretty confusing if we used simple past for both. The past perfect helps us understand that the bad sales happened the year
before the shoppers got a head start.
Generally speaking, there are no ironclad rules for when you should and should not use the past perfect (for more on that, check out
this post). Also, you'll never have to look at a single sentence in a bubble and decide whether to use past perfect or simple past.
Your job is to select the
best option out of the five available choices. And in the only option that uses simple past (choice E), the structure of the comparison is way off. So we're stuck with past perfect, whether we like it or not

.