Acronyms are words formed by the first letters of words in a phrase. A good example is “SCUBA,” which stands for “Self-Contained Underwater Breathing Apparatus.” Another illustration is the term “zip” code which stands for "Zone Improvement Plan"—a reference to the zones adopted in 1963 to speed up mail delivery in the U.S. The selection’s main pattern of organization is: (Click on the pattern of organization.) a. definition and example. b. comparison. c. contrast. d. cause and effect.
