Which of the Following Is an Example of a Zero

Which of the following is an example of a zero correlation?

A) the relationship between your personality and the position of various stars and planets on the day of your birth
B) the relationship between your height and your age
C) the relationship between what you had for breakfast and when you will want to eat lunch
D) the relationship between how often you floss your teeth and the likelihood that you will ever need to have a root canal