What is the purpose of the state and municipalities allocating specific financial resources according to article 157 of the text?

I- To develop public functions of common interest.
II- To ensure the participation of the set of municipalities in relation to the state.
III- To promote regional planning.
IV- To organize and execute public functions of common interest.
V- To create a normative and deliberative council for each regional unit.
a) Only I is correct.
b) Only II is correct.
c) Only III and IV are correct.
d) I, III, and IV are correct.