<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.
I think it will be true !
I think that the key word here is "effects" - the study would be into effects of oil - so not other oil-related topics.
Because of this the correct answer is
<span>a. How does oil shape social, political, and economic conditions in southwest Asia?
here the word "shape" is a synonym to "create and influence" - so it's about the effect!</span>
Answer: They tell about the inventories, wills, private letters, legal deeds, ballads,and poems of these homelands. The documents are written in different languages that corresponds with their regions like Sanskrit in India,Tibetan in Tibet, Sogdian in Ancient Iran, Parthian in Northeast Iran, and many more.