It is argued that a localized industrial cluster of firms can enjoy external economies by creating a pooled market for workers with highly specialized skills. In what ways can such a pooled labor market be advantageous and who could benefit? Labor market pooling can O A. increase the likelihood of unionization leading to higher wages and benefits for workers at the expense of producers. O B. increase the likelihood of job retention and improved productivity among workers to the benefit of producers. O C. reduce the likelihood of labor shortages for producers and unemployment for workers. O D. reduce the likelihood of unionization by workers leading to lower wages and benefits to the benefit of producers