Answer:
B. He granted freedom of religion in the Roman Empire is your best answer.
Explanation:
A is just one of the results occuring after he ended the persecution of Christians.
For C, he did not "introduce" Christianity, but he legalized it and made it the official religion of the Roman Empire.
For D, the Roman Empire was already a pagan empire, and Constantine made it a Christian Empire.
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B, cooperation and agreement
On argumentative culture, Deborah Tannen is concerned that people's culture is accustomed to the habit of discussing and framing everything in different debates, so losing or winning is the only concert of modern society. She also notes that while oppositions and conflicts are needed in dialogues, alternatives such as agreement and cooperation of people, are necessary to have some scale to avoid overloading them.
Answer: Median
Explanation: It is better to use the median because the median in statistics is a method to separate the higher half from the lower half in a given data. In this case, using the median will be able to clearly differentiate the average salary.