Based on historical perspective, the racial categories in the 1850 U.S. Census are three (3).
The racial category is how different people are categorized based on race. The racial features that are used in classification are is usually based on color.
During the United States census in 1850, the races were categorized into three (3) which include the following:
Hence, in this case, it is concluded that the correct answer is three (3).
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