Which of the following statements is an operational definition of "fear of snakes" that could be assessed as a structured question?a. measuring heart rate following exposure to snakes.b. asking the question "When was the last time you saw a snake?"c. assigning the participant to keep a "daily fear diary" in which they track their fear level.d. asking, "On a scale of 1 to 10, how afraid of snakes are you?"
