<s>[INST] The next text is a question of a member of the European parliament:"I understand that European subsidies are granted for milk processed using certain methods (including the UHT method) in cartons and also in plastic packaging. There are no subsidies for milk in glass containers. If this is the case it would mean that, strangely, non-reusable forms of packaging are favoured to the detriment of more environmentally responsible alternatives.  Is it true that under European subsidy provisions milk in cartons and plastic packaging is subsidised and milk in glass containers is not? If so, what legislative provisions govern this situation?"
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>
I understand that European subsidies are granted for milk processed using certain methods (including the UHT method) in cartons and also in plastic packaging. There are no subsidies for milk in glass containers. If this is the case it would mean that, strangely, non-reusable forms of packaging are favoured to the detriment of more environmentally responsible alternatives.  Is it true that under European subsidy provisions milk in cartons and plastic packaging is subsidised and milk in glass containers is not? If so, what legislative provisions govern this situation?