四、閱讀測驗（41-50 題，請選出最適當的選項） Passage 1         While anxiety in its various forms has undoubtedly been with humans from time immemorial,certain modern lifestyle factors may have exacerbated the problem, and anxiety management needsto include a close analysis of lifestyle and thought patterns followed by appropriate modification.         During the past two decades, researchers have discovered that decreases in sleep time and qualitycan cause changes in nervous systems. Notably, anxiety can be augmented by excessive caffeine,alcohol, and recreational drugs such as marijuana, cocaine, and amphetamines. In particular, caffeineuse can profoundly raise the anxiety levels in those predisposed individuals, particularly the patientswith generalized anxiety disorder (GAD). Recent research has also empirically established that inaddition to food and fluid intake, factors such as social discrimination against obesity and physicalinactivity may also significantly aggravate anxiety.
41. According to the passage, which of the following statements is NOT true?
(A) Poor sleep is related to anxiety.
(B) Too much caffeine can cause trouble sleeping.
(C) Anxiety level is associated with drug use.
(D) Sleeping problems may predispose some people to alcohol problems.