In cross sectional research, a researcher compares multiple segments of the population at the same time.
<h3>What is cross sectional research?</h3>
It is a type of research design in which data are collected from many different individuals or segments.
This data are analyzed at one specific point and time.
Therefore, a cross sectional researcher compares multiple segments of the population at the same time.
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Answer:a
Explanation:
The Present value of cash Flow increases as the discount rate decreases as there is an inverse relation with discount rate.
Mathematically,

Where
PV=Present value
CF=cash Flow
r=discount rate
t=time
as r decreases PV increases
Sample are the characteristics of the individuals of the population being studied
Crèvecoeur omits the many waffling people in the middle, who wanted to stay home on their farms rather than shed blood for either side
Explanation:
John de Crèvecoeur is French born American who had done many roles in his life term like he was farmer and very good writer. In his Letter from an American Farmer he narrated the life style of American in the period of 18th century. His narration is extremely based on the how America transformed from the old thoughts and how the people has accustomed to the various races of people settled over there. He was the keen observer of the revolution and narrated his thoughts in the “Letter from an American Farmer”. While do so he has omitted the waffling people of middle who were not involved themselves in the revolution rather they were do their farming activities.