ECON HELP!! According to a 1963 edition of the Effingham Daily News, Illinois Consolidated Telephone Co. switched?

According to a 1963 edition of the Effingham Daily News, Illinois Consolidated Telephone Co. switched from the switchboard system to the dial system at 12:01 a.m. Sunday, Aug. 18, 1963. Thirty miles of cable supported the new high-tech system. It took four weeks to lay the telephone lines that allowed Effingham... show more According to a 1963 edition of the Effingham Daily News, Illinois Consolidated Telephone Co. switched from the switchboard system to the dial system at 12:01 a.m. Sunday, Aug. 18, 1963. Thirty miles of cable supported the new high-tech system. It took four weeks to lay the telephone lines that allowed Effingham residents to directly connect to each other through the telephone. How does the switch from the switchboard system to the dial system impact the labor market for switchboard operators?

A.Decreased the marginal productivity of telephone operators

B.Increased the demand for telephone operators

C.Decreased telephone operators value of marginal product

D.Increased the supply for telephone operators
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