I have a problem in economics on Labor History-Blacklisting. Please help me in the following question. Firms which colluded by circulating the names of the union organizers and hence they would have complexity getting jobs were engaged is now-illegal practice termed as: (i) Featherbedding. (ii) Blacklisting. (iii) Strike-breaking. (iv) Union-busting. (v) Scabbing.
Select the accurate option.