This year a flood devastated a small river town. Hollyville, also a river town, responded with an outpouring of aid in which a majority of its residents participated, a proportion that far surpassed that of a few years ago when Hollyville sent aid to victims of a highly publicized earthquake. This year' s circumstances were a reversal of last year' s, when Hollyville itself was the scene of a deadly tornado and so the recipient rather than the supplier of emergency aid. The situation described above most closely conforms to which one of the following generalizations? ['People are more likely to aid people they know than they are to aid strangers.', 'Once a disaster has struck them, people are more likely to aid others in need than they were before the disaster.', 'People are more likely to aid those who have experienced a hardship similar to one they themselves have experienced than to aid those who have experienced a dissimilar hardship.', 'Those who have received aid are more likely to be in favor of government relief programs than are those who have not.']