40. According to the passage, the capacity for happiness is one that ______. (A) you inherit from your parents (B) you might have to work hard to attain (C) you were born with (D) you must learn from talented people

1. 下列哪個敘述最能描寫下圖的狀況？ (A)本圖代表某生物體的成長，早期成長快速，後來成長趨於穩定。 (B)本圖代表某生物體的成長，後來因為疾病以致於成長下降，等病好了又恢復成長，如此不斷循環。 (C)本圖代表某生物族群的成長，因環境負荷量有限而穩定的上下波動。 (D)本圖代表某生物族群的成長，因為季節的更替而跟著上下起伏。