Sumerian writing was wedge-shaped, or and was formed by pressing a stylus against a damp clay tablet.

 The correct answer is :  Cuneiform

Explanation:  The Sumerians invented the cuneiform writing on tables of wet clay with a beveled plant stem called calamus. The need led them to invent writing. Cuneiform writing was adopted by other languages: Akkadian, Elamite, Hittite and Luvite,

even though you have attached neither the chart nor the generalizations, i have located them online. the right answer is d, since they are asking you about a generalization. you can only infer from the chart that between 2008 and 2009 the number of employed workers decreased significantly (from over 115 millions to 107 millions approximately), which signals some type of economic crisis.  

answer; adoption agencies tend to place separated twins in similar homes;