Refer to the discussion on consumer perceptions and the following concepts: just noticeable difference (differential threshold); selective attention; grouping; and halo effect. EITHER (i) Define each concept and describe how consumers will respond to the new PepsiCo product, given what each concept says/suggests about consumer behavior; OR (ii) Define each concept and describe what PepsiCo has to do to market the new product effectively, given what each concept says/suggests about consumer behavior. Write a minimum of THREE (3) sentences for each description.