Which supporting detail would best develop this topic sentence from an expository essay?
One benefit of learning another language is that knowing it can come
in handy when traveling to another country.
A. People speak English as their primary language in only about a
quarter of the world's countries.
B. There are several benefits to learning a foreign language: It is
useful when traveling, it connects you to other cultures around the
world, and it develops your brain.
C. When visiting another country, it is important to be well prepared

Read the excerpt from david foster wallace’s infinite jest. my silent response to the expectant silence begins to affect the air of the room, the bits of dust and sportcoat-lint stirred around by the ac’s vents dancing jaggedly in the slanted plane of windowlight, the air over the table like the sparkling space just above a fresh-poured seltzer. the coach, in a slight accent neither british nor australian, is telling c.t. that the whole application-interface process, while usually just a pleasant formality, is probably best accentuated by letting the applicant speak up for himself. in this excerpt, the narrator is providing a, both objective descriptions and subjective commentaries. b. only objective information about people, setting, and events. c. only subjective responses to the things he sees and experiences. d. a compromised interpretation of events due to his unstable condition.