What role did the janissaries serve in the rise of the ottoman empire? (1 point)
a. they were the empire's wealthiest merchants.
b. they brought european science to the empire.
c. as slaves, they built roads and rowed ships.
d. they formed an important fighting corps.

Which of the following world and national events led to a new view of people with disabilities in the us:     a.  world war i and ii veterans with disabilities returned home after the wars.b.  john f. kennedy was elected president and had a sister with a disability.c.  the civil rights and feminist movements.d.  all of the above.