A person reading a new book for pleasure is like a tourist traveling to a new place. The reader reads, just as the tourist travels, to enlarge understanding rather than simply to acquire information. Thus, it is better to read fewer books and spend more time on each rather than to quickly read as many as one can, just as it is better to travel to fewer places and spend more time in each rather than to spend a small amount of time in many different places. Which one of the following, if true, most strengthens the argument? ['Tourists gain much more understanding of a place once they have spent several days at that place than they do in their first few days there.', 'Tourists typically learn something about the places they visit even when they are there only to relax.', 'Many people report that they can learn far more about a place by visiting it than they can by reading about it.', 'Tourists who have read about a place beforehand tend to stay longer in that place.']