WHICH OF THE FOLLOWING STATEMENTS IS SUPPORTED BY THE PASSAGE

34. Which of the following statements is supported by the passage? A. Tin cans and iceboxes helped to make many foods more widely available. B. Commercial ice factories were developed by railroad owners. C. Most farmers in the United States raised only fruits and vegetables. D. People who lived in cities demanded home delivery of foods.IV. Read the following passage and blacken the letter A, B, C or D on your answer sheetto indicatethe correct answer to each of the questions from 35 to 44.Human memory, formerly believed to be rather inefficient, is really much moresophisticated than that of a computer. Researchers approaching the problem from avariety of points of view have all concluded that there is a great deal more stored in ourminds than has been generally supposed. Dr. Wilder Penfield, a Canadian neurosurgeon,proved that by stimulating their brain electrically, he could elicit the total recall ofcomplex events in his objects’ lives. Even dreams and other minor events supposedlyforgotten for many years suddenly emerged in detail. The memory trace is the term for whatever forms the internationalrepresentation of the specific information about the event stored in the memory.Assumed to have been made by structural changes in the brain, the memory trace is notsubject to direct observation but is rather a theoretical construct that is used tospeculate about how information presented at a particular time can cause performanceat a later time. Most theories include the strength of the memory trace as a variable inthe degrees of learning, retention, and retrieval possible for a memory. One theory isthat the fantastic capacity for storage in the brain is the result of an almost unlimitedcombination of interconnections between brain cells, stimulated by patterns of activity.Repeated references to the same information support recall. Or, to say that another way,improved performance is the result of strengthening the chemical bonds in the memory.