What trade route was Mesopotamia part of?

Mesopotamian cities established trade all up and down the Tigris and Euphrates rivers and into Anatolia, today's Turkey. Other overland trade routes went east over the Zagros Mountains into present-day Iran and Afghanistan.

Explanation:

question:  

the chart compares religious beliefs to us political party support.

religious beliefs and party support, 2012

this chart demonstrates that

a) more highly religious people supported the republican candidate, while more nonreligious people supported the democratic candidate.

b) more highly religious people supported the democratic candidate, while more nonreligious people supported the republican candidate.

c) more moderately religious people supported the republican candidate, while more nonreligious people supported the democratic candidate.

d) more moderately religious people supported the democratic candidate, while more nonreligious people supported the republican candidate.

answer: a.