Imagine You Read a Brief Newspaper Article That States Research

Imagine you read a brief newspaper article that states research has shown that eating grilled-cheese sandwiches is correlated with asthma.In evaluating whether you should give up the sandwiches,what is the one piece of additional information that would be most useful to you

A)  What is the base rate of asthma? 
B)  Is the difference large enough to have practical implications? 
C)  Do scientists think there is a causal relationship between grilled-cheese sandwiches and asthma? 
D)  Was the research conducted by a psychologist or medical doctor?