The correct sentence is this: TWO party systems are most common in the English speaking countries of the world.
Two party system refers to a type of party system in which only two political parties dominate the government. At any point in time, one of the political party usually have the highest number of members in the government and such a party is refers to as the governing party while the other party is called opposition. A good example of a two party system is the Republican and the Democratic political parties of United States of America.
The adrenal glands are paired organs that lie on the medial side of the upper kidney.
<h3>What are the adrenal gland?</h3>
These are glands that are triangular in nature and located on the upper part of the kidney.
They are important in regulating the immune system, blood pressure, response to stress, metabolism amongst others.
Learn more on adrenal gland here; brainly.com/question/15628426
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The rate of 40 percent will be used for the highest earners in Country X pay in taxes.
<h3>What is a progressive taxation?</h3>
This method of taxation involves use of higher tax rates for those who earns higher income or more wealth,
Hence, the rate of 40 percent will be used for the highest earners in Country X pay in taxes.
Therefore, the Option D is correct.
Read more about progressive taxation
<em>brainly.com/question/1601662</em>
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Sleeping is a behavior that is dependent on both instinctive and environmental conditions.
True
