I think it should be because diplomats is the representative of a nation and negotiating with other nations could be more easier if we're already friendly with the diplomat. Also the way we treat their diplomat is also the way of how we treat the nation he/she representing and it would add a good standing in the global status if we are respecting the diplomats.
The awnser is ghenkis Kahn
In American political discourse, states' rights are political powers held for the state governments rather than the federal government according to the United States Constitution, reflecting especially the enumerated powers of Congress and the Tenth Amendment.
The answer is C, as Buddhists rejected it due to the assignment of value it proposed upon others. =)
The last option! Hope this helps :)
They were led by Vladimir Lenin and a group of revolutionaries called the Bolsheviks!