What are prepesitinal words or phrases?

A prepositional phrase is a group of words consisting of a preposition, its object, and any words that modify the object. Most of the time, a prepositional phrase modifies a verb or a noun. These two kinds of prepositional phrases are called adverbial phrases and adjectival phrases, respectively.

A prepesitinal (prepositional) words or phrases is  somethings that has to with an object here are a few"

Around the box

In the box

On the box

Beside the box

Under the box

These are just a few  Around, On, Beside etc. is a prepositional phrase because it is where your located around the object.

Hope this helps!

what is the passage?

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.