What factors led to the beginning of world war ii in europe?

a. various independence movements in serbia against austria-hungary
b. the rise of aggressive nationalism among some of the nations defeated in world war i
c. the rise of communism in soviet russia, which was seen as a threat by many european nations
d. rising competition among european powers for colonies and trading posts in africa and asia
can be more then one answer

Read the excerpt from “strychnine in the soup,” in which mr. mulliner explains the ending of a mystery novel to a bar patron who is anxious to know the conclusion of the story. “the plumber forgot his snake and had to go back for it,” explained mr. mulliner. ‘‘i trust that this revelation will prove sedative.” “i feel a new man,” said the draught stout. “i’d have lain awake worrying about that murder all night.” explain how a student who did not know the meaning of sedative could infer its definition?