Answer:
The correct answer is B - Secondary Source.
Step-by-step explanation:
An original and unique data, which is directly collected by the researcher from a source such as observations, surveys, questionnaires, case studies and interviews according to his requirements is referred to as Primary Source of Data.
Secondary Source of Data on the other hand is easily accessible but are not pure as they have undergone many statistical treatments.
Government publications, websites, books, journal articles, and internal records are some sources of secondary data.
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