Periodization is a useful concept to apply when organizing the history of Mexico into three distinct units of time.
Answer: Option B
<u>Explanation:</u>
Periodization is the historical explanation which mainly involves the steps of categorizing and studying about the past events in a specific time period. These are organized on the basis of relatively common characteristics.
Here, this phenomenon is applied to organize and analyze history of Mexico into three distinct unit of time because it covers duration of more than 3000 years and contain historical points like it had witnessed complex indigenous civilization situations before being conquered and before colonization by Spanish people in the 16th century.
If those are your options the answer is B.
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In the late 1400s and 1500s, the main reason for exploration in the New World was the need for alternate trade routes. They have no idea the Americas even existed, however.
The difference for the given polynomial is 
Explanation:
The given polynomial is 
A polynomial is generally a sum or difference of terms or variables which are separated by addition and subtraction signs. There are "three types of polynomial": Monomial, binomial and trinomial.
The difference between is found as follows:
D = 
Removing the brackets, we get,
D = 
D = 
D = 
Thus, the polynomial represents Option A as the difference.
The area around India and the Indian Ocean.