Answer:
1
Explanation:
The rest are wrong b/c it helped <em>expand</em> China rather than isolate it, they didn't use ships on the Silk Road, and it brought better communications, etc. between countries.
Whatever formation it formated
Paleogeography should be the answer
The three
basic economic questions are the following:
<span>1. </span>What goods and services are to be
produced
<span>2.
</span>How the
products will be produced
<span>3. </span>Who gets what is produced/
Who will use the
products produced
Therefore,
letter D, who will produce the products is the exception of the basic economic
questions.
<span>A.
longitude
</span><span>D.
elevation</span>