Read the following article and answer the question by choosing from the options.

It is n't load bearing , it 's frighteningly easy to mis - tie and produce a ' granny knot ' which are even worse ( though not much ) . It will invert at the slightest provocation which can lead to it simply unravelling and here he was putting it into her leg ! To give you a clear picture Clifford Ashley ( revered as a knot God ) has remarked that the reef knot is likely responsible for more deaths than all other knots combined . Happily my knowledge of knots saved us all from an awkward situation .

What may be a plausible fact about knots ?
Options are:
-None of the above choices ..
-Reef knot has an edge over all knots.
-Good knots require knowledge.
-Knots cause deaths....A:
Good knots require knowledge