Which of these is an example of a zoning ordinance ?

a ) a city charges a tax of 2 % on the value of all homes

b ) a state requires each town to build a school

c ) a town allows only residential buildings in a certain area

d ) a county forces people to sell their homes to build a highway

a.   it resulted in widespread unemployment.

seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.