Why do you see the trail of light after moving a laser pointer quickly?

Which of these can an adverbial clause modify?

Which sentence has a correctly placed participial phrase? a. we read about a pizza on the menu covered in pepperoni. b. covered in pepperoni, we read about a pizza on the menu. c. we, covered in pepperoni, read about a pizza on the menu. d. we read about a pizza covered in pepperoni on the menu.

Write a short paragraph explaining how to determine what information to put into a slide show presentation.