I believe the answer is: Division of Labor.
Division of labor is always necessary because one part of the economic operation wouldn't be able to done without the completion of other parts, no matter how small it is.
For example, a manager of a big restaurant wouldn't be able to fulfill their revenue goals if the cashiers do not keep the money properly.
A investment is a broker statement
Answer:
I just want your points hahaha
Answer: Option (b) is the correct option
Explanation:
Labor agreements are the agreements between some amount of skilled workers or their seller and employer for recruiting them for specific work.
Seniority stage is important in terms of labor agreement as it provides them seniority points for their full time working. It measures length of service of employees and accordingly provides privileges and other benefits .It also helps in promotion of employee when certain seniority and service length is reached as per firm norms .
Other options are incorrect because seniority stage does not offer retirement plans requirement, childcare and family issue acknowledging and grievance filing process as per labor agreement .Thus, the correct option is option(b).