Television advertisements typically portray the elderly as being

Negative stereotype

Explanation:

Northcott's study, for example, in the 1970s, concluded that the negative image of old age on television was a constant and the few elderly characters always played lesser and less visible roles.

The research by Swayne and Greco narrowed the issue further in the 1980s, as it showed cases of double negative stereotype, that of elderly minorities on television.

Also in the 1980s, Dail showed that the elderly, much more than any other social group, were portrayed in the media in an unpleasant and negative way, especially regarding their physical abilities, health, sociability, personality and work ability.

answer; someone must cover the cost associated with the provision of scarce goods in both sectors;