Task: Question Answering
Input (English): A research study concluded that people who work longer hours increase their chances of having higher blood pressure. This conclusion was developed from a study of 200 men of different ages. How is this investigation biased?  
 (A) The sample size was too large. (B) Scientists did not run the study. (C) Women were excluded from the study. (D) No medication was given to the men.
Output (English): C