Me find the answer for this correctly

which statement about the louisiana purchase is correct?

select the best answer from the choices provided.
a.
it sparked further debate between slave and free states.
b.
the number of slave states doubled.
c.
it led to the passage of the northwest ordinance.
d.
the state of michigan was added to the union.

B.

The number of slave states doubled.

yes they have. but is this a true false question? if it is, the answer is true.

world war i began in 1914, after the assassination of archduke franz ferdinand, and lasted until 1918. during the conflict, germany, austria-hungary, bulgaria and the ottoman empire (the central powers) fought against great britain, france, russia, italy, romania, japan and the united states (the allied powers). to new military technologies and the horrors of trench warfare, world war i saw unprecedented levels of carnage and destruction. by the time the war was over and the allied powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

explanation: