B>it's because it states there is only one.
It would be imagery because the excerpt is very descriptive.
D, because the other three are very wide topics but you can explicitly discuss the effects and cause of MLK's bus boycott <span />
It's not a denotation. If it were, the earth would be cinder long forgotten millions of years ago.
It really isn't to reveal the importance of watching the sky. The word burn is used poetically. If the poem wanted you to watch the skies, it would have said so either directly or indirectly using poetic language. Nowhere are you being asked to watch the skies.
There is nothing in theory about the burn and as a consequence there is nothing critical in the tone.
That only leaves A but it is not a very good answer.
A <<<< answer.
Answer:
✓More than a hundred million e-mails are sent around the world each day, and they are all vulnerable to interception.
✓Other attacks include the use of viruses and Trojan horses.
✓Only a small fraction of the information flowing around the world is securely encrypted. :)