Correct Answer: Dither

Solution : The correct choice is the third option.

Explanation: "Hesitate" and "dither" both convey a sense of indecision or uncertainty. In the context of decision-making or taking action, one might hesitate or dither before making a choice.

The meanings of the other options are as follows:

1. Haste: Haste refers to acting quickly without proper consideration.
2. Stumble: Stumbling typically refers to tripping or making a mistake physically.
3. Hassle: Hassle refers to a situation causing difficulty or trouble.