Please identify potential issues with the following segmentation practices.

$($Specify which criteria for good segmentation they fail to meet$).$

Insurance companies have divided the consumer market into two segments: optimists

and pessimists, and have decided to offer different types of insurance products.

Luxury goods companies have split the consumer market into two segments:

materialistic and non$-$materialistic consumers, and have chosen to provide varying types

of luxury goods.

Verizon has segmented the consumer market based on demographic variables,

specifically targeting elderly consumers over $80$ years old who do not currently

subscribe to their Fios internet service and decided to promote special Fios deals via

Instagram.

Walmart has divided its consumer market based on annual household income, targeting

neighborhoods with an annual income of $$1$ million.

$1$

$2$

$3$

$4$

A$.$ substantial

B$.$ accessible

C$.$ stable

D$.$ identifiable

E$.$ distinctive