Out of all the fights with the Morlocks, the fight that was classified as the worst in The Time Machine by the Time Traveller was the fight they have when the Time Traveller first enters the underworld.
The Time Traveler comes to the conclusion that he must enter the world of the Morlocks in order to retrieve his machine. Weena and the pursuing Morlocks perish in the ensuing forest fire, and the Time Traveller escapes after setting a small fire behind them to divert the Morlocks. The Time Traveller is crushed by his loss.
It was his first fight that was the worst as he did not had any idea about how to fight the Morlocks which made it really difficult for him.
Thus, the correct option is A.
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