input: Text: A FALL OF GLASS By STANLEY R. LEE Illustrated by DILLON The weatherman was always right: Temperature, 59; humidity, 47%; occasional light showers—but of what? The pockets of Mr. Humphrey Fownes were being picked outrageously. It was a splendid day. The temperature was a crisp 59 degrees, the humidity a mildly dessicated 47%. The sun was a flaming orange ball in a cloudless blue sky. His pockets were picked eleven times. It should have been difficult. Under the circumstances it was a masterpiece of pocket picking. What made it possible was Humphrey Fownes' abstraction; he was an uncommonly preoccupied individual. He was strolling along a quiet residential avenue: small private houses, one after another, a place of little traffic and minimum distractions. But he was thinking about weather, which was an unusual subject to begin with for a person living in a domed city. He was thinking so deeply about it that it never occurred to him that entirely too many people were bumping into him. He was thinking about Optimum Dome Conditions (a crisp 59 degrees, a mildly dessicated 47%) when a bogus postman, who pretended to be reading a postal card, jostled him. In the confusion of spilled letters and apologies from both sides, the postman rifled Fownes's handkerchief and inside jacket pockets. He was still thinking about temperature and humidity when a pretty girl happened along with something in her eye. They collided. She got his right and left jacket pockets. It was much too much for coincidence. The sidewalk was wide enough to allow
  Question: What does the falling glass symbolize?
  
   (A) The importance of bucking authority and tradition in order to identify solutions for problems that plague communities all over the globe
   (B) The delicate balance that countries -- large and small, developed and developing -- must strike if they are to preserve Earth's natural resources
   (C) The deterioration of boundaries between members of different races, genders, social classes, and religious factions
   (D) The cracking of an illusion of safety and optimal conditions in a chaotic world inhabited by humans bent on self-destruction
  Answer:
output: The cracking of an illusion of safety and optimal conditions in a chaotic world inhabited by humans bent on self-destruction