Help on Flaw Q Forum

[flash21]

PT 32, s4, Q13

I can see now why (D) is correct, I missed the fact that it said "in the opinion of 72 percent of ..." and took that claim to be 100 percent true.

However, why is (B) wrong? I'll explain how I'm making it work in my head.

Mistaking a condition required (having dominant market share) if a certain result is to obtain for a condition that by itself is sufficient (the stimulus says now that all they have to do is maintain that same market share to remain dominant) to guarantee that result.

So I'm thinking, just because it is necessary to have that large percent of the market share, is maintaining it sufficient to guarantee that they remain the dominant brand?

I don't know if I'm just talking jibberish. If someone can explain to me how a sufficient and necessary confusion is actually NOT happening here at all, that would be great.

[balla4life215]

Notice the argument never states that having a large percentage of the market share (over 50%) is necessary, only that it is sufficient by definition to make a product dominant. Therefore any product that continues to satisfy that condition will continue to be dominant in the market.