Answer: n may cause p
Step-by-step explanation:
A causal relation between two events exists if the occurrence of the first causes the other.
The first event is called the cause and the second event is called the effect. A correlation between two variables does not imply causation. But if there is a causal relationship between two variables, they must be correlated.
In the given question, it is given that there is strong relationship between variables n and p .
So it does not imply anything with "must".
So the only option is true is B. "n may cause p"