Hello. today i got this homework, but i can not solve it. someone ?

What is the difference between a major and a minor character? a major character has a less important story line, while a minor character plays a bigger role in the plot. a major character plays a big role in the plot, while a minor character has a less important story line. a major character has an unimportant story line in the plot. a minor character's story line is as important and developed as the major characters' story lines.

Although the account is in good standing at this point in time. is this sentence incomplete or complete?

The dogs created when they pulled the christmas tree down and started eating the candy canes.