Which of the Following Sentences Is the Best Example of the Use

Which of the following sentences is the best example of the use of vague words?

A) The teacher wrote a letter to Jim's parents informing them of his week long absence from school.
B) She wore a blue shirt with a black skirt.
C) She made a potato salad for dinner and an apple pie for dessert.
D) The homecoming party was wonderful.
E) She bought two batteries for her car.