Choose the correct the rocks on the volcanic island were in nature.
subterranean
fidelity
igneous
allusion

i know it isn’t 2 or 4, but the other two don’t make sense to me either..

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?