By 1786, how many states had either abolished slavery or legislated "gradual
emancipation" (getting rid of slavery over
a period of years)?

the graph shows the spread of railways in the 1800s.

based on the graph, the conclusion that can be drawn about germany is answer d)   by 1880, germany had more rail lines than great britain and russia.

if you could provide an excerpt for me to read i could

the buddha identified ways to end suffering and attain minerva, which is the ultimate goal of buddhism. for this purpose, he came up with the concept of the four noble truths, which were crucial to ending suffering. the last of these truths stressed following the eightfold path , which is a series of steps that allow you to live life in a proper manner. these steps would make sure that you would follow the or live life in moderation.

the eightfold path has 8 practices which are: