Lourdes: Dietary fiber is an important part of a healthful diet. Experts recommend that adults consume 20 to 35 grams...

Cheynne on January 7, 2021

Can we get an explanation for A?

I do not understand how A undermines. If the average adult consumes 10g of fiber a day, would eating an additional 20g be over the recommended?

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Shunhe on January 8, 2021

Hi @cheynnelee,

Thanks for the question! So remember what this question is trying to do. It’s asking us to undermine Kyra’s recommendation. What is Kyra’s recommendation? It’s that the public should be told to cut back on fiber intake. So we want something that suggests that Kyra is wrong, that the public shouldn’t be told to cut back on fiber intake.

Now recall that Lourdes tells us that adults should consume 20-35g of fiber a day. But (A) tells us that adults eat 10g of fiber per day. If that’s true, they aren’t getting enough fiber, they need more of it! So Kyra’s suggestion to eat less would be undermined, making (B) the answer.

Hope this helps! Feel free to ask any other questions that you might have.