Question 13

Such behavior suggests that ravens can monitor the presumed mental states of animals besides themselves, which shouldn't be possible without some kind of thought processing.

Using "such behavior" clarifies that the statement is referring back to the specific actions of the ravens being discussed, making the sentence more coherent and contextually appropriate.

A) (as it is now)

This choice retains the original phrasing, which lacks clarity. The phrase "this last behavior" is vague and does not effectively link to the specific actions of the ravens, leading to potential confusion about what behavior is being referenced.

B) this

Using "this" similarly fails to provide specificity. It does not adequately connect to the behavior being analyzed and could leave the reader unsure about which behavior is being discussed, undermining the clarity of the argument.

C) it

Opting for "it" also lacks the necessary specificity and context. This term does not explicitly refer back to the behavior, making the sentence less clear and potentially confusing for the reader regarding what is being analyzed.

D) such behavior

This option is the most effective choice as it directly refers back to the behaviors of ravens mentioned earlier in the text. By using "such behavior," it maintains a clear connection to the previous context, enhancing the overall clarity and coherence of the sentence.

Conclusion

The choice "such behavior" is the most appropriate option as it clearly links the behavior of ravens to their cognitive abilities, reinforcing the argument about their thought processing. Other options, such as "this," "it," and the original phrasing, fail to provide the necessary specificity and clarity, making them less effective in conveying the intended meaning.