Least developed countries have all of the following problems in common EXCEPT:

a. illiteracy.
b. political instability.
c. ethnic conflict.
d. anarchy.
e. inequality.

d. anarchy.

Explanation:

A movement that does not believe in the authority and reject it in many different levels or stages.it get rids the undesirable state which can be harmful and unnecessary by replacing it with some form of free associations.

d. Anarchy

Explanation: Least developed countries sometimes referred to as emerging markets are countries that are highly susceptible to economic and environmental shocks, face significant structural challenges to sustainable development, and have fewer human assets when compared to other nations. While there are several criteria for categorizing nations as least developed countries such as low income, human assets (health and education subindex), and economic vulnerability, however, anarchy doesn't make the list as despite these factors, these countries still have authorities capable of arbitrating their disputes and enforcing international law including territorial monopoly.

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

the answer is d. amendments.