求解一篇争论不休的阅读机经——

网上大概搜了搜，说啥的都有... 想问问诸位怎么想这个题哇~
机经240里的第141篇：
As of the late 1980’s, neither theorists nor large-scale computer climatemodels could
accurately predict whether cloud systems would help or hurt a warming globe.Some studies
suggested that a four percent increase in stratocumulus clouds over the oceancould
compensate for a doubling in atmospheric carbon dioxide, preventing apotentially disastrous
planetwide temperature increase. On the other hand, an increase in cirrusclouds could
increase global warming.
That clouds represented the weakest element in climate models was illustratedby a study
of fourteen such models. Comparing climate forecasts for a world with doublethe current
amount of carbon dioxide, researchers found that the models agreed quite wellif clouds were
not included. But when clouds were incorporated, a wide range of forecasts wasproduced.
With such discrepancies plaguing the models, scientists could not easily predicthow quickly the
world’s climate would change, nor could they tell which regions would facedustier droughts or
deadlier monsoons.
第2题：
It can be inferred that one reason thefourteen models described in the passage failed to
agree was that
(A) they failed to incorporate the most up-to-date information about the effectof clouds on
climate
(B) they were based on faulty information about factors other than clouds thataffect climate
(C) they were based on different assumptions about the overall effects ofclouds on climate
(D) their originators disagreed about the kinds of forecasts the models shouldprovide
(E) their originators disagreed about the factors other than clouds that shouldbe included in
the models
答案是A。楼主想了好久还是觉得是C，求大神解救......