Which keys can be pressed to change the cuboid/frame selector color?

pressing the l key i hope help for you

Explanation:

the fingers on your left hand should be placed over the A, S, D, and F keys and the fingers on your right hand should be placed over the J, K, L, and ; keys. These keys are considered the home row keys. Your thumbs should either be in the air or very lightly touching the spacebar key.the fingers on your left hand should be placed over the A, S, D, and F keys and the fingers on your right hand should be placed over the J, K, L, and ; keys. These keys are considered the home row keys. Your thumbs should either be in the air or very lightly touching the spacebar key.

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; you can turn right on a red signal (when posted);