Final answer:
The data file is likely to provide information on the list of activities, durations, and precedence relations in the construction process, which can relate to social stratification within the construction industry.
Step-by-step explanation:
The data file mentioned in the question likely provides C. List of activities, their durations, and precedence relations with respect to the construction process of a new high-rise complex by WW Construction Company. Such a data file would be typical in the field of project management.
When considering the context provided by the latter part of the question, which references a group of construction workers on the job site and a group of businessmen, the data file could include informaion highlighting categories of social stratification present within the construction industry, such as occupational roles, income levels, and power dynamics.