The answer: 1
i hope this helps
According to the graph, we can say that <span>
Nigeria was generating greater revenue from oil in 1990 compared to previous years. </span><span>If we look on the table, we can see how the oil industry has covered more of the economy, so if it went down, Nigeria would get in serious economical problems.</span>
The main reason was that the Ottoman empire was in very slow decline during these years; when other major European powers were starting to industrialize themselves. Because the Ottoman Empire couldn't keep up ,they suffered the consequences in the form of a later period of industrialization.
Extra,time,paper is the correct option