Which statement about the supreme court's brown v. board of education decision is correct?

a.
it upheld the earlier plessy v. ferguson ruling on public education.

b.
it said that individual states could decide whether to integrate public schools.

c.
it declared that segregated public schools were constitutional.

d.
it overturned "separate but equal" public education.

What was one important characteristic of the russian military during world war i? a. it had more advanced military technology than its western european allies. b. it was an all-volunteer military that enjoyed high morale throughout the war. c. it defended russian territory but refused to attack german positions d. it was unable to provide its forces with adequate weapons and supplies.