Answer:
The right answer for: Bui wants to condition his lab rat to fear to drink orange-flavored water. He pairs a mild shock with the drinking of flavored water. He wants the rat to associate the unconditioned stimulus, the shock, with drinking the water.
How could he be most successful. Is: To choose another conditioned stimulus.
Step-by-step explanation:
To understand this answer we have to analyze two things. First, if he raises the level of damage the shock gives to the rat he can end up killing it. So it is not the option. Then if he changes the flavor of the water or the color it will lose its initial conditioned stimuli. He needs to add another conditioned stimulus that makes the rat adopt a scape behavior it could be noise, temperature stimuli, anything that could make the rat be aware of the danger that the shock gives or increase the scape behavior.