Behavioral studies comparing young chimpanzees to young humans reveal few difference between their psychological capacities. The most reasonable explanation for these results is the inadequacy of the studies.
An unstated premise of the above argument is that:
A) Psychological capacities cannot be assessed objectively. -
This weakens the argument. If the capacities can't be assessed then there is no use in conducting such studies.B) Biased researchers frequently misinterpret the results of their studies. -
Had the results been misinterpreted the outcome would have been wrong. But as per the argument, the studies were inadequate, so we can't say whether the studies were inadequate based on the misinterpretation of the results.C) Young humans and chimps have underdeveloped psychological capacities. -
Okay, but it doesn't concern us with the inadequacy of the studiesD) The psychological capacities of young humans and young chimps differ significantly. -
Correct. If it is a known fact that the humans differ COMPLETELY from the chimps then we can definitely conclude, as done in the passage, that the studies weren't conducted adequately.E) young chimpanzees can speak as well as young humans. -
out of scope