How did the geography of the Yucatán, home of the Maya civilization, help to promote trade? A. A harsh climate forced the people to barter for most of their food. B. Large inland lakes and streams let the people import food items. C. A lack of forests made it easier to build an extensive road system. D. Rivers and a long ocean shoreline made transporting goods easier.

idk

explanation:

the quote by walter cronkite contributes to the central idea of the text by supporting the central idea. cronkite argues that what is deemed “right” for and in america may not be good for other countries. this supports the central idea of the text, that the vietnam war was unpopular in america for multiple reasons- including cronkite’s.

the answer should be a. the sui empire, the tang empire extended from korea in the west to manchuria in the east.