GMAT Reading Comprehension (RC) | Re: Most economists in the United States seem captivated by the spell

I have doubt regarding question 5). How is it B instead of A ?

It is mentioned in the passage that"In fact, price-fixing is normal in all industrialized societies because the industrial system itself provides, as an effortless consequence of its own development, the price-fixing that it requires."

Price fixing is an effortless consequence but it is not inevitable. Also, the word 'profitable' in option A is misleading.

Can anyone help me with this, please ?
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