Base on this chart which of these is true ​

b

Explanation:

when looking at the chart you can see that most of the exports from these south american countries are exporting mainly foods with some export other items like oil or copper or iron

I think the answer is B: South American countries

Explanation:

If you look at the chart in exports, you will see there are many food products that are exported. For example,

5 i think

explanation:

hope this will

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.