A logical fallacy of the single cause is demonstrated in the statement regarding the extinction of African elephants.
Logical fallacy refers to incomplete or incorrect reasons to be included in an argument, which generally do not hold true of logic in the argument as such.
Ban on ivory can lead to a decrease in the extinction of the African elephants, but it cannot lead to a complete stoppage of their extinction.
Hence, option B holds true of the logical fallacy demonstrated above.
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