<s>[INST] The next text is a question of a member of the European parliament:"An article in the Belgian press claims that a major international road haulage company based in Wallonia is at the centre of a social dumping case that has forced the country’s trade unions to seek legal address.(1)Every 15 days, the company in question charters a plane from Bucharest to Maastricht, only a few kilometres from the Belgian border, to transport between 160 and 180 Romanian lorry drivers for work all over Europe.The unions are accusing the company of unfair competition and social dumping, as drivers are paid between EUR 550 and EUR 600 gross per month, whereas in Belgium a lorry driver costs an employer between EUR 4500 and EUR 5000.Despite the fact that Parliament approved new legislation on this issue on 8 July, the famous Mobility Package, which is supposed to improve working conditions and combat fraud linked to the posting of road transport workers, still has a long way to go.Will the Commission take up the case and open an investigation into this violation of EU law on the posting of road transport workers?  (1)https://www.rtbf.be/info/belgique/detail_le-transporteur-routier-jost-group-dans-la-ligne-de-mire-de-la-csc-transcom?id=10580177"
Analyze carefully the text and assign it to the most relevant policy area among those listed below. Do not explain your answer and return only a number.
Policy area numbers: 1 = Macroeconomics
2 = Civil Rights, Minority Issues and Civil Liberties
3 = Health
4 = Agriculture and Fisheries
5 = Labour, employment and pensions
6 = Education
7 = Environment
8 = Energy
9 = Immigration
10 = Transportation
12 = Law and Crime
13 = Social welfare
14 = Regional and Urban issues and Planning
15 = Banking, finance and domestic commerce issues
16 = Defence
17 = Space, science, technology, and communications issues
18 = Foreign trade
19 = International affairs and foreign aid
20 = Governance and government
21 = Public Lands, Water Management and Territorial Issues
23 = Culture and media
[/INST]. Answer = [5]. </s>
An article in the Belgian press claims that a major international road haulage company based in Wallonia is at the centre of a social dumping case that has forced the country’s trade unions to seek legal address.(1)Every 15 days, the company in question charters a plane from Bucharest to Maastricht, only a few kilometres from the Belgian border, to transport between 160 and 180 Romanian lorry drivers for work all over Europe.The unions are accusing the company of unfair competition and social dumping, as drivers are paid between EUR 550 and EUR 600 gross per month, whereas in Belgium a lorry driver costs an employer between EUR 4500 and EUR 5000.Despite the fact that Parliament approved new legislation on this issue on 8 July, the famous Mobility Package, which is supposed to improve working conditions and combat fraud linked to the posting of road transport workers, still has a long way to go.Will the Commission take up the case and open an investigation into this violation of EU law on the posting of road transport workers?  (1)https://www.rtbf.be/info/belgique/detail_le-transporteur-routier-jost-group-dans-la-ligne-de-mire-de-la-csc-transcom?id=10580177