Archaeologists are currently analyzing plant remains found at a site that was last occupied more than 10,000 years ag...

nivensdc on December 27, 2019

Why B?

Why B, why not A?

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SamA on January 7, 2020

Hello @nivensdc,

There is some conditionality involved in this stimulus. If scientists are able to determine that the plants were cultivated, then we will have one conclusion. If scientists are able to determine that the plants were not cultivated, then we will have another conclusion.

We do not actually know if the scientists will be able to make this determination. We only know that they are trying to, so we do not have support for answer choice A.

The point is that it doesn't matter if they are able to make this determination or not. Either way, we know that we have only two possibilities. Either the plants were cultivated, or they weren't. This limits us to two conclusions, and one of them must occur. Both conclusions can be described as plant use that no other people were doing at the time. Cultivated or uncultivated, B is a valid conclusion from the stimulus.