Answer:
A. True
Explanation:
If the brands do not have any actual or perceptual differences, then, the brands do not have any determinant differences and are essentially the same.
For example, if two competing firms offer the same kind of milk, and the branding of the box is similar, and customers believe that both brands are perfect substitutes for each other (they feel that is the same to buy either one or the other), then, the two milk brands do not have any determinant differences.