Explanation
A. The passage does not mention the conveyance of information about daily lives as a factor in the success of sustaining native languages through radio programming.
B. (Correct Response) The passage suggests that some radio programming might be less successful because it does not integrate the cultural context of the language, which includes traditional songs and word games that give subtle meaning to the words. This is indicated in the fourth paragraph, where it is mentioned that effective programming includes elements that connect the language to its culture.
C. There is no mention in the passage of economic circumstances being a factor in the success of native language radio programming.
D. The passage does not discuss the advocacy design of the programs as a factor in their success or failure.
E. The passage actually suggests the opposite in the fourth paragraph: traditional academic methods, such as classroom lessons, are less engaging and thus potentially less successful. The passage does not criticize radio programming for failing to use traditional academic methods but rather for not incorporating cultural elements.
The passage, specifically in the concluding section, suggests that effective language preservation programs are those that incorporate the cultural context of the language. Radio programming that does not connect language use to the associated culture is implied to be less successful in sustaining these languages.