Which of the following job summaries exemplifies knowledge work in today's economy?

Multiple Choice

gathering all the component parts necessary and then assembling the small engines for a weed$-$eater manufacturer

answering customer phone calls and facilitating return, replacement, and repair orders for the online sales division

analyzing the hospitalization rates, transportation needs, and ancillary cost drivers for a conglomerate of nursing homes

scanning new applications into the system and ensuring all the data is entered correctly