Acourt-ordered was imposed on fairlawn city employees who worked on the city's streets and bridges. although these employees were unionized and voted to strike for higher wages and benefits, the city insisted they had a no-strike clause in their agreement and therefore asked the courts to order them back to work, to keep the streets free of ice and snow during the winter months.

a) picket
b) secondary boycott
c) primary boycott
d) injunction