A colon is best used to connect two independent clauses when Select one:
1.the second clause is an elaboration of the first clause.
2.the first clause is the cause and the second clause is the effect.
3.the first clause contains a list.
4.the second clause contains a quotation.

1.   the second clause is an elaboration of the first clause.

Explanation:

Examples:

The local temperature where I live is quite high: in July it remained consistently in the 90 degrees range, which was an improvement on the current temperatures, which are stuck in the 100 degrees range.  

The purpose for answering your question is twofold: (1) to help you understand; and (2) to show you how "" I am.

the economic activity signified in that scenario is a. production

in general, market production makes reference to the elaboration of a product or service which is destinated for economic purposes (to be sold) at money-price in a market. such product or service has to be principally tradable for money.

there is no money exchange involved in distribution, generalized reciprocity or balanced reciprocity.