Mathemetically -
A = 100
S = 80 + 28 = 108
B = 32 - 28 = 4
Now, Check the options -
(A) Belief - Doesn't weaken , is just a judgement of prominent political analysts.
(B) Some switch , some may be 1 , 2 , 3 and can be any number and still S has a chance to win.
(C) exchange for financial considerations - Out of scope.
(E) Previous years record has no justification about this years outcome
Whereas If (D) is true then the entire mathemetical calculation is of no use and votes can go in favour of any candidate...
Thus, Answer must be (D)
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