Which of the following is correct inregard to the use of formal english?
a. formal english is used more frequently in speaking than in writing
b. in formal business correspondence, its best keep the language impersonal
c. in formal english, we use words to say precisely what we mean
d. contractions are considered acceptable in any docment

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?