【正确答案】：
AS HOMONYMS ARE IDENTICAL IN SOUND OR SPELLING, PARTICULARLY HOMOPHONES, THEY ARE OFTEN EMPLOYED TO CREATE PUNS FOR DESIRED EFFECT OF HUMOR, SARCASM OR RIDICULE.
“WEEK DAYS” REFERS TO THE DAYS FROM MONDAY TO FRIDAY IN A WEEK. HOWEVER, WEEK AND WEAK ARE HOMOPHONES THAT ARE PRONOUNCED THE SAME BUT DIFFER IN MEANING AND SPELLING.
HERE THE ANSWER BY B CLEVERLY EMPLOYED THE HOMOPHONES, WEEK AND WEAK, IN HIS VERBAL UTTERANCE TO ACHIEVE A HUMOROUS EFFECT，BECAUSE THE SOUND OF WEEK IS IDENTICAL WITH WEAK, WHICH IS AN ANTONYM OF THE WORD STRONG.
【题目解析】：本题考查同形同音异义词在修辞方面的应用。由于同形同音异义词在语音或拼写上是相同的，尤其是同音异义词，它们常常被用来创造双关语，以达到幽默、讽刺或嘲笑的效果。“Week days”指的是一周中从星期一到星期五。然而，week和weak是同音异义词，week表示“星期”，weak表示“弱的”。在这里，B巧妙地运用了同音词“week”和“weak”来达到幽默的效果，因为"week"和“weak”的发音是一致的，所以说除了工作日以外的周日是“强”的，这里想运用weak的反义词strong。