GWD-12-Q22

开心的柠檬

贴上RON的解释给各位：
i'm not sure whether there's a language barrier at work here, but the idiomatic expression "thanks to" means "because of".
also, "largely" means "almost entirely".

so, translated, we have
their sales revenue from Denoma models actually grew, almost entirely because of to some innovative and popular models that Denoma introduced.

now remember, PREMISES DON'T LIE.
so, even if choice (e) is true, these deep-discounted models accounted for only a small fraction of the retailers' sales revenue - because, as stated in the passage, the clear majority of that sales revenue came from the "innovative" new models.

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choice (c) is the favorite here.

REMEMBER WHAT YOU SHOULD DO ON PROBLEMS LIKE THESE:
FIRST, MAKE EXPLICIT EXACTLY WHAT THE "SURPRISING RESULT" IS.
in this case, the "surprising result" is the fact that, SIMULTANEOUSLY, denoma's sales revenues decreased while the retailers' sales from denoma increased (largely because of NEW models).

choice (c) provides a good rationalization: the other part of denoma's revenue (the part from making parts for other companies) decreased. this would not have affected the retailers' revenue from denoma products, because the retailers don't sell the parts.