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Re: Botanist: On the remote island of Tropica, it is known that early sett [#permalink]
premise: settlers planted special variety of sunflower 10000 yr ago. all sunflower on island are from that variety.
conclusion: by studying today's variety, we can know about that orginal variety.
evidence: the wild plants have not been selectively cultivated over the years as the farmed plants have.

Pre-thinking: what if selectively not cultivated, then we would have lost the original variety some where in between. now that we have cultivated then properties of orginal one are carried on in current variety.

B. The wild sunflower plants on the island of Tropica today are more similar to the original variety than today’s farmed plants. --- what if this is not true. what good it will bring by studying these plants. we will know nothing about orginal variety. straight thi is the right answer.

D. The selective cultivation of farmed plants over the past 10,000 years has led to few if any significant changes from the original variety. --- even if few changes we can know about the original variety. what if we negate it. conclusion is as it is. this can't be the answer.
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Re: Botanist: On the remote island of Tropica, it is known that early sett [#permalink]
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
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Re: Botanist: On the remote island of Tropica, it is known that early sett [#permalink]
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