Can you please explain why A is the correct answer?

the answer in the book is B. is this correct??

@erojas and @jamesio, we have the answer as B in our system. Is there a mistake somewhere?

can you please explain this question? Why is B the answer? I had E

Yeah, why is it B? I had E too

Answer B is correct. The question stem lets us know that we are looking for why the argument’s reasoning is most vulnerable to criticism. What is the argument actually saying? We know that it is making a claim about Mayan civilization’s grasp on math — “not only” about Mayan astronomers, but about the Mayan people “in general.” But the evidence we get for the claim about Mayan people “in general” is about the writings of the Mayan religious scribes, which exhibited a high degree of mathematical competence. That doesn’t seem like a correlation/causation error (answer E), as the argument isn’t using the fact of Mayan religious scribes’ abilities to say anything about what is causing the Mayan people “in general” to have good math skills. Instead the reasoning is flawed because the Mayan religious scribes are probably a sample that is unrepresentative of the general population — these are religious scribes! Not ordinary people! That is why B is the right answer. I hope that helps!