Osama Bin Laden was the man inchrage of Al-Qaeda
To my knowledge, the correct answer among all of the given choices is C.) Steam. If I'm not mistaken, this was the time that more trains came into use.
I hope this is the answer you were looking for and that it helps!! :)
~Colonists' boycotts of British goods were hurting British trade
South wanted slavery, rebellions because of Lincoln becoming president, John Brown's and other abolitionists actions, the consequences caused by Compromise of 1850, the consequences of the Fugitive Slave Act, and the controversy and Bleeding Kansas.
I have a feeling legislative.