Which Question Is Least Likely to Provide Useful Information for Determining

Which question is least likely to provide useful information for determining the cause of a patient's reported constipation?

A) "How long have you taken laxatives?"
B) "How much fluid do you drink in a day?"
C) "How much exercise do you typically get each day?"
D) "Do you have increased mucus and straining with your hard stools?"