Solution
Expression = $$\ (203+107)^{2}-(203 - 107)^{2}\ $$
Let $$x=(203+107)$$ and $$y=(203-107)$$
=> $$x^2-y^2=(x+y)(x-y)$$
= $$[(203+107)+(203-107)][(203+107)-(203-107)]$$
= $$406\times214=86884$$
=> Ans - (B)
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