Use the passage below to answer questions 4 and 5.
Increasingly, companies are turning to subcontracting services rather than hiring full-time employees. This provides companies with many advantages. For example, subcontractors offer greater flexibility, reduced legal responsibility to employees, and lower possibility of unionization within the company. However, it has also led to increasing confusion and uncertainty over the legal definition of employment. Recently, the courts have grappled with questions about the hiring company’s responsibility in maintaining fair labor practices. Companies argue that they delegate that authority to the subcontractors, while unions and other worker advocate groups argue that companies still have a legal obligation to the workers who contribute to their business.
4. According to the passage, which of the following is NOT an advantage of using subcontracting services?