Final answer:
Douglas Pick's home was located near the University of Southern California where he began making and selling ear plugs.
Step-by-step explanation:
According to the Spotlight on Small Business box titled, "When Your Workers Work for Someone Else", the location of Douglas Pick's home was near the University of Southern California.
Douglas Pick began making and selling ear plugs out of his home, which is known to be situated close to the university campus.
The vignette related to Douglas Pick is an example of entrepreneurship, but it doesn't provide specific details about his home's exact location, just that it is in proximity to the University of Southern California.