The number of years it will take you to have completed studied an organism that has a life cycle of 10 years, is 15 or more than that. This is because you cannot just easily derived to a conclusion without controlling the environmental aspects of the experiments.
The correct answer is - E.) to increase national sovereignty.
By cooperation on regional or global level the states do not, and can not really do anything about increasing the national sovereignty. The reason for that is that the national sovereignty is the matter of the state itself, its politics, policies, and handling of the situations in the country. The other countries with whom the state cooperates have nothing to do with it, nor it is their place to interfere in the national sovereignty of the other states, be it friendly states or not.
I can try to help what is it that you need help on
The Natives were ready to rebel against the Aztecs because of the abuses they experienced in its political system.
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</span><span>When the Europeans arrived to conquer Aztecs, the Natives did not attack but helped them. They have decided </span><span>to overthrow their government. </span>
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