Answer:
d. negative
Step-by-step explanation:
In research, a negative correlation is a relationship between two variables where, as one increases the other decreases. When this happens we say that they are negatively correlated.
In this example, you discover that higher self-reported levels of happiness are associated with lower levels of binge-eating behavior. We can see that as happiness increases, the binge-eating behavior decreases and vice versa. Therefore, this would be a negative correlation that you have just revealed in your research.