GMAT Sentence Correction (SC) | Re: QOTD: Because an oversupply of computer chips

In D, the idiom "Due to" can only be used to modify nouns

Ask yourself what is causing the manufacture to cut production? It's not computer chips (the noun) but the fact that an oversupply of computer chips has caused prices to plummet (a pharse, and therefore cannot be modified by Due to)

For A, the idiom "Because X did something, something else happens" is perfectly
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