Answer: Avoids the nuances and shadings response of customer.
Step-by-step explanation:
Perceptual gap mapping is the map model that is created by marketers to display the perception of customers in visual form.Buyers place their product in map to display position of product ,brand and company in terms of competition.
This method does not include shading or different response of customer which creates limitation in brand evaluation in term of attributes.
Other options are incorrect because intuitive method,new product development technique and conceptual leap for brand new product production are not the drawbacks of perceptual mapping.