Taking into account all weather phenomena, the occurrence of a tidal wave is probably the more difficult to predict.
A probably the more difficult to predict.
B it may be, the prediction that is most difficult
C possibly the more difficult to predict
D is probably the most difficult to predict
E it is possible, the most difficult of all predictions
"Start By Doing What Is Necessary ,Then What Is Possible & Suddenly You Will Realise That You Are Doing The Impossible"