I believe the answers are 1 and 3
Answer:
Schlieffen plan.
Brainly needs more characters
The group that invaded the Slavic homeland beginning in the ninth century was A. Varangians.
Varangian was a Greek and East-Slavic term for a Viking.
B)the professional success of Jackie Robinson and
Willie Mays. Both were African
Americans who played professional baseball and helped promote integration in
sports. Despite their initial hardships
both players led their teams to victory and most importantly overcame racisms
in professional sports.