Which sentence does not use a colon correctly?
a. these packages are for: mrs. carty, miss cohen, and mr. deller.
b. here's what you have to do: put gas in the car, pick up some milk, and fold the laundry.
c. the science fiction course includes these authors: madeleine l'engle, ursula k. leguin, and ray bradbury.
d. we need the following information: name, address, and telephone number.