Which sentence uses commas correctly? a. water is all over the planet earth and there is a lot more water than land. b. clouds float in the air, and they consist of masses of water drops. c. the oceans are mostly water and, they cover most of earth. d. icebergs float in the oceans, but, they are solid.

When an author introduces a new character in a short story, he or she must quickly establish the character's key traits. in this portion of the narrative, the author misses an opportunity to develop mr. valentine. rewrite this section of the story to better establish mr. valentine as a complex character.