<s>[INST] The next text is a question of a member of the European parliament:"Agri-environmental aid to traditional olive-growing areas is vital for maintaining an ecosystem which is important to the preservation of biodiversity (plant and animal life) and natural beauty in Portuguese regions experiencing serious economic and social decline, as well as a worsening rural exodus, as illustrated in the latest census figures (2001). Olive growing is still an important source of income and jobs.  To a question about the criteria adopted in the national provisions governing agri-environmental measures to protect traditional olive-growing areas, the Portuguese Government answered that these had been decided by the European Commission.  These criteria — in particular the use of the physiographic index (which, under national rules must be equal to 3, 4 or 5) — are having the effect of disqualifying much of the traditional olive-growing land, in the regions of Trás-os-Montes and Alto Douro, in Beira Interior and Alentejo.    The Commission:      —  Will it explain what were its reasons for taking the decision?      —  What measures does it intend to take to remedy this problem?"
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 = [4]. </s>
Agri-environmental aid to traditional olive-growing areas is vital for maintaining an ecosystem which is important to the preservation of biodiversity (plant and animal life) and natural beauty in Portuguese regions experiencing serious economic and social decline, as well as a worsening rural exodus, as illustrated in the latest census figures (2001). Olive growing is still an important source of income and jobs.  To a question about the criteria adopted in the national provisions governing agri-environmental measures to protect traditional olive-growing areas, the Portuguese Government answered that these had been decided by the European Commission.  These criteria — in particular the use of the physiographic index (which, under national rules must be equal to 3, 4 or 5) — are having the effect of disqualifying much of the traditional olive-growing land, in the regions of Trás-os-Montes and Alto Douro, in Beira Interior and Alentejo.    The Commission:      —  Will it explain what were its reasons for taking the decision?      —  What measures does it intend to take to remedy this problem?