Harry notices that one of his houseplants does not grow very well compared to his other houseplants. He asks himself “What is different with this plant that does not grow very well compared with the other house plants?” Harry then goes to his computer to use the internet to look up what other people have done when faced with this problem. Harry then hypothesizes that this houseplant is not getting as much sunlight as the other plants. Which of the following selections defines Harry’s problem?