Answer :
a. VALS is a well-known personality categorization system used to classify customers.
It segments people based on their psychological characteristics and key demographics that are linked to consumer behavior. Businesses use VALS to understand and predict consumer preferences and behaviors more effectively.
On the other hand, the Myers-Briggs Type Indicator (MBTI) is another well-known personality assessment, but it is not typically used for classifying customers specifically.
Instead, MBTI classifies individuals into one of 16 personality types based on their preferences in four dimensions: introversion versus extraversion, sensing versus intuiting, thinking versus feeling, and judging versus perceiving.
