查了一下好像不是大权的题，记不起从前从何处DOWN的题。Anyway, 请帮忙分析一下。
Most insomnia is not an illness or a physical condition so much as a symptom of another problem that may simply be a reaction to certain medications, anxiety about travel, or stress before a job interview.
A. an illness or a physical condition so much as a symptom of another problem that may simply be a reaction to certain medications
B an illness or a physical condition so much as symptomatic of another problem that may be a simple one, like a reaction caused by certain medications
C so much an illness or a physical condition but a symptom of another problem that may be as simple as when certain medications cause a reaction
D so much an illness or a physical condition, but it is a symptom of another problem, maybe a simple one like certain medications causing a reaction
E so much an illness or a physical condition but symptomatic of another problem, maybe simply a reaction to certain medications
the given key is E. | 
