4 Select the correct answer.
What is a central idea of the passage?
OA.
The narwhal has a single tooth, outside of its mouth, unlike other marine mammals, who have many teeth.
OB.
Whales are difficult to study because they are found in waters that are difficult to reach and covered in ice.
Oc.
The narwhal is a deep-water diving marine mammal with a single tooth, or tusk, for which it is best known.
OD.
Whales, such as the narwhal, that inhabit Arctic waters feed mainly during the spring and summer months.
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How does the author foreshadow trouble in the prison? support your answer with explicit textual evidence.

Blogs differ from most other online text sources because they o focus on news and information. allow readers to interact with each other. are usually updated every day. can be updated with new information.

Read the excerpt from infinite jest 'my application's not bought," i am telling them, calling into the darkness of the red cave that opens out before closed eyes. 'tam not just a boy who plays tennis. i have an intricate history. experiences and feelings. i'm complex. "read,' i say. 'i study and read. i bet i've read everything you've read. don't think i haven't. i consume libraries. i wear out spines and rom-drives. i do things like get in a taxi and say, "the library, and step on it." my instincts concerning syntax and mechanics are better than your own, i can tell, with due respect. the theme suggested by the excerpt is about a. being understood b. the value of education c. wisdom versus foolishness d. learning responsibility