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# Darwin's theory of Natural Selection fails to explain

$\begin {array} {1 1} (1)\;Role\: of \: variations & \quad (2)\;Survival\: of \: the \: fittest \\ (3)\;Arrival\: of \: the \: fittest & \quad (4)\;Struggle \: for \; the \: existence \end {array}$

Can you answer this question?