Why do you use a colon in a sentence? A. To set off dialogue
B. To set off an explanation
Both of these are correct

How does gregor change from the beginning to the end of the story?

How does a wilted rose represent dark romanticism

Aids is growing fastest in the poorest countries of africa. these nations don’t have enough doctors, medical labs, or money for medicine. a recent study showed that only a small percentage of hiv-infected children in africa are getting any medical treatment at all. what central idea is emphasized in both sources? the hiv/aids epidemic in africa is serious. the hiv/aids epidemic in south africa is serious. the hiv/aids epidemic among african children is serious. the hiv/aids epidemic among south african children is serious