If a writing paper made from a pulp is to look white, manufa

Discussed here: https://gmatclub.com/forum/manufacturers-of-writing-paper-need-to-add-mineral-filler-to-paper-311585.html#p2414411

Answer explanation is discussed here: https://forum.powerscore.com/lsat/viewtopic.php?t=12140

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The conclusion is too wordy, and confusing. "Therefore, barring the more efficient use of fillers in paper manufacturing or the development of paper-whitening technologies that do not require mineral fillers, if writing paper made from recycled paper comes to replace other types of writing paper,paper manufacturers will have to use more filler than they now use.". I guess that the creator of the argument wished to make it more complicated by adding the irrelevant and unnecessary "barring the more efficient use of fillers in paper manufacturing or the development of paper-whitening technologies that do not require mineral fillers."
I believe that this addition did not contribute to the argument. This argument would have been more compelling if the conclusion had been "Therefore, if writing paper made from recycled paper comes to replace other types of writing paper,paper manufacturers will have to use more filler than they now use."

Understing the stimulus:
The writing paper is made from pulp.

The Premise says: To make writing paper white it the manufacturing process need to add additional filler with the pulp, otherwise the paper will grayish. Paper pulp can also be made from recycled paper, in that case more filler will be needed to make the paper white.

Conclusion is finding other sources to produce writing paper so that less filler can be used to whiten the paper.

Argument is if the manufacturers is use recycled paper to produce writing paper they will need more filler to whiten the grayish paper. THE PRE-THINKING SAYS THERE MIGHT BE NO ALTERNATIVE OF WHITE PAPER TO WRITE.

AS THE QUESTION IS ABOUT ASSUPTION.

(A) The total amount of writing paper manufactured worldwide will not increase substantially in the future.
IT IS OUT OF SCOPE. THE PASSAGE GAVE NO INFORMATION ABOUT SUSTAINABILITY.

(B) Certain kinds of paper cannot be manufactured from recycled paper.
IT'S MOST LIKELY BE ANSWER. BUT IT SAYS NOTHING ABOUT GRAYISH PAPER.

(C) Beyond a certain limit, increasing the amount of filler added to paper pulp does not increase the whiteness of the paper made from the pulp.
THE WRITER IS LOOKING FOR SOME ALTERNATIVE, WHICH COULD HELP EITHER REDUCE USE WHITENING FILLERS.

(D) The fillers that are used to make paper white are harmful to the environment.
THIS OUT OF SCOPE. NO INFORMATION IS GIVEN ON IT.

(E) Grayish writing paper will not be a generally acceptable alternative to white writing paper. [THIS IS THE ASSUMPTION; AS EVERYTHING IS BEING TRIED WITH A THINKING THAT GRAYISH PAPER WILL NOT AN ALTERNATVE OF WHITE PAPER FOR WRITING.]

ANS. E

I guess that the creator of the argument wished to make it more complicated by adding the irrelevant and unnecessary "barring the more efficient use of fillers in paper manufacturing or the development of paper-whitening technologies that do not require mineral fillers."
This addition does not contribute to the argument.
The conclusion is: "Therefore, if writing paper made from recycled paper comes to replace other types of writing paper,paper manufacturers will have to use more filler than they now use."
Does this explanation help?

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