prevaricate

菅さんが小沢さんを破って民主党統裁に選ばれましたが、"dog that caught the car"(http://blog.alc.co.jp/blog/3302827/177784)にならない事を祈ります。
さて、今日の単語 "prevaricate" もReader's Digest 6月号の Word Powerからです。
意味は次のどれでしょうか？
A: scream
B: emphasize
C: tell a half-truth
答えはCで例文は When asked if he'd broken the window, the Little Leaguer prevaricated, claiming that as a southpaw, his aim couldn't have been that good.
意味を辞書でも確認します。
・OneLook Quick Definitions: be deliberately ambiguous or unclear in order to mislead or withhold information
・V2 Vocabulary Building Dictionary: to avoid telling the truth by being deliberately ambiguous or misleading
Tips: Because the words sound similar, many people confuse prevaricate with procrastinate. Procrastinate means "to put off doing something," while prevaricate means "to deliberately avoid the truth or try to mislead someone." Prevaricate comes from the Latin phrase praevaricari, which means "to walk crookedly." Think, "avoiding being straight in order to confuse and mislead." Prevaricate is synonymous with equivocate. To prevaricate is to avoid telling the truth by being ambiguous and misleading. Equivocate is the act of being unclear and misleading. For example: "The journalist accused the politician of prevaricating when the politician began to equivocate instead of providing a straightforward and honest answer to the question." Prevarication is the act of prevaricating.
Usage Examples:
*Even under oath, he continued to prevaricate about what exactly had happened. (lie, deceive, mislead)
*I knew that when I confronted her she would prevaricate about who started the rumor. (be ambiguous, be evasive, equivocate)
うーん、RDの解答 "tell a half-truth" もどうやら "half-truth" の気がします。