Explanation
This question asks about "animal whim," a term that is not
defined in the passage. But we can infer from the passage that an investor
acting on animal whim is one of the investors who uses the CCI for stock
decisions, and who is therefore irrational. We can infer also that the
animal-whim investor is inclined to act quickly, since the effect of this
investing would be smoothed by releasing the CCI outside of business hours.
Let's see which answer choice is compatible with these points. Choice (A) fits
with the notion of irrationality. Choice (B) doesn't fit. Choice (C) is similar
to rationality, but it implies randomness, which isn't the case with these
investors, who are responding to the CCI. Choice (D), like (B), introduces an
emotion that sounds "animal" in a sense but is supported by the passage. Choice
(E) describes a form of behavior that has the whiff of irrationality, since the
investor is investing a large amount, doing it suddenly, and doing it on the
base of one piece of information that only "hints." We are left with (A) and
(E); which is better supported? A problem with (E) is that we don't know
whether the piece of information is correct or not. The author has given us no
reason to believe that single pieces of information can't be important or that
swift investment decisions are always hasty. Another problem is that the
investor in (E) is acting based on information about a particular stock, and
the author has specifically indicated that acting on information about specific
stocks is rational. So (E) is out. As for (A), do we have grounds to know that
the investors know that their reasons
are unsound? We have some ground, since, for example, the CCI is "generally
agreed to be a lagging indicator."
The correct answer is (A).
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