<u>Personal selling</u> refers to the face-to-face presentation and promotion of goods and services.
<u>Explanation</u>:
Promotion of the product or service lays success to the organization or firm. It is mandatory for a company to promote the product that is manufactured by them. The product can be promoted using different promotional tools. This enhances the participation of the consumers in the exchange.
The promotional tool induces the interest of the dealer and consumer in purchasing the product. Television and direct mail are considered as the top advertising media that can be used for successful promotion.
If this question is asking what I think it's asking, the answer is Puberty or Pubescence.
Liza's gambling is being reinforced based on a
"variable-ratio schedule".
A variable-ratio schedule refers to a schedule of reinforcement where a reaction is strengthened after an unusual number of reactions. This timetable makes an unfaltering, high rate of reacting. Betting, gambling and lottery amusements are great cases of a reward in light of a variable ratio schedule.
I think its d. but I'm not sure. plz don't report me if I'm wrong