contestada

Which sentence correctly uses a colon?
A. After Evelyn's mother left for work, Evelyn read the list of her chores for the day: vacuum, walk the dog, and take out the trash.
B. After: Evelyn's mother left for work, Evelyn read the list of her chores for the day, vacuum, walk the dog, and take out the trash.
C. After Evelyn's mother left for work, Evelyn read the list of her chores for the day, vacuum, walk the dog: and take out the trash.
D. After Evelyn's mother left for work: Evelyn read the list of her chores for the day, vacuum, walk the dog, and take out the trash.