The word 'bias' means a. prejudice
I hope this helps! :)
Answer:
They tell what each section is mostly about
Explanation:
For example if you were writing a paragraph about how your dog looks you're header might be something like "About My Dog" or something to that effect. Sorry I'm not very good at explanation but I hope this helped you. :)
Either A or B will benefit from a line graph, but if you the one that will benefit the most from a line it would be A.) Profits throughout the past 18 months.