A researcher wants to see if four different strategies to combat work fatigue are independent of the gender of the person using them. She draws a sample of 200 office workers, half of them women and...

A researcher wants to see if four different strategies to combat work fatigue are independent of the gender of the person using them.  She draws a sample of 200 office workers, half of them women and half men, and obtains data on which strategy the participants use to combat fatigue at work.  The four strategies are: Consumption of caffeine, taking a short “power” nap, exercise, and consumption of sugar.  Is the preference for a particular method of combating drowsiness independent of gender?

what statistical test should be used and why?