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

Because an oversupply of computer chips has sent prices plunging , the manufacturer has announced that it will cut production by closing its factories for two days a month.

(A) Because an oversupply of computer chips has sent prices plunging

(B) Because of plunging prices for computer chips, which is due to an oversupply

(C) Because computer chip prices have been sent plunging, which