Answer:
Shihuangdi was emperor of the Qin dynasty (221–210 BCE) and the creator of the first unified Chinese empire. He is also known for his interest in immortality, his huge funerary compound that contains some 8,000 life-sized terra-cotta soldiers, and for his contribution to the Great Wall of China.
Explanation:
After the death of Marcus Aurelius, the Roman empire slowly started to decline. Potential new emperors began to focus on pleasing the rich Patricians at the expense of the poor plebeians . The resulting decadence was just one reason for the fall of the empire.
(It needs to be pointed out that as the question seems incomplete and lacks more context, the answer might not meet the its standards).
The research error described above is an example of selection bias.
Selection bias takes place when, from a population of interest, a group of individuals is selected in order to construct a sample but without a proper randomization. The result is a sample which is not representative of the underlying population.
According to the example, the target population of the research comprises all students but the sample only includes boys. Hence, selection has not been random because it followed a gender criteria, and the results obtained using it cannot be applicable to the whole population because they are affected by a selection bias.
<em>I think it might be D.concurrent Because two concurrent courts of law.</em>
<em>accordant or agreeing: concurrent testimony by three witnesses.</em>
This is kinda hard sense they do produce a lot of major industries in the U.S like natural gas, tourism, etc.But as for the BEST answer I'd say D)