What type of tropic movent is shown by a plant bending away from a stimulus?

When a plant exhibits some growth movement in response to a stimulus, it is referred to as tropism.

Tropism is specific to the direction of the stimulus. Plants can either display a negative or positive movement in response to a stimulus. It is positive tropism when the movement is towards the direction of stimuli while it is negative tropism when the movement is away from the stimuli.

Hence, the correct option is negative tropism.