Ebony, age 88, appears younger than her 77-year-old sister, Desiree. However, Desiree remains active mentally, whereas Ebony finds it difficult to complete familiar tasks. The sisters’ actual competence and performance in dealing with life’s challenges indicate their age.
A) social
B) biological
C) functional
D) chronological

i want to say it is either Social or Functional

Explanation:

swahili is an extremely rich and complex civilization, a set of ethnic groups articulated by a language and a series of cultural elements that fuse the african traditions, islam and indian culture. this growth was largely a result of the indian ocean trading network that brought in not just man-made riches, but also religious ideas, specifically islam, which had a significant impact on the local culture. furthermore, the development of the swahili language gave a common cultural unity to the people.

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.