While Brian was drunk at an office party, he hid his car key…

While Briаn wаs drunk аt an оffice party, he hid his car keys sо they wоuldn't get stolen. The next day, Brian could not remember where he hid his keys and had to get a new set of keys made for his car. When Brian got drunk again at a jazz festival three weeks later, he suddenly remembered where he hid his car keys. This example illustrates _____ .