In every case of political unrest in a certain country, the police have discovered that some unknown person or persons organized and fomented that unrest. Clearly, ttherefore, behind all the cases of political unrest in that country there has been a single mastermind who organized and fomented them all. The flawed reasoning in the argument above most closely parallels that in which one of the following? ['Every telephone number in North America has an area code, so there must be at least as many area codes as telephone numbers in North America.', 'Every loss of a single hair is insignificant, so no one who has a full head of hair at twenty ever becomes bald.', 'Every citizen of Edmonton has a social insurance number, so there must be one number that is the social insurance number for all citizens of Edmonton.', "Every Chicago driver has a number on his or her license, so the number on some Chicago driver's license is the exact average of the numbers on all Chicago drivers' licenses."]