Which of the Following Would Be Considered a Positive Correlation

Multiple Choice

Which of the following would be considered a positive correlation

A) David has increased the amount of exercising he's been doing and has noticed a decrease in his weight.
B) Sal has decreased the amount of sugar he eats and has experienced a decrease in the number of headaches he typically has.
C) Tina has experienced a decrease in grades but the amount of TV she has been watching has increased.
D) None of the above