A20-year-old male was recently diagnosed with lactose intolerance. he eats an ice cream cone and develops diarrhea. his diarrhea can be classified as diarrhea.

Prior knowledge can be gained from personal experience and a) forming well-developed hypotheses. b) listening to opinions of other people on a topic. c) researching previous experiments and results on a topic. eliminate d) no other methods. it can only be gained by personal experience.