Marketers use various tools of communication to promote their products.
(a) Why do companies use all the tools at the same time?
(b) Name and explain the most commonly used nonpersonal tool of communication which is paid for by the marketer.
(c) Which tool of the promotion will be used for the following:
(i) To promote or protect a company's image
(ii) An existing product meant for mass usage by literate people.
(iii) To introduce a new product through home door visits
(iv) To attract attention of the people by using incentives.

Dear Student
a) Companies use various tools at the same time because of the nature of the product and market, promotion budget and objectives of the promotion being different at different times.
b) Most commonly used non- personal tools of communication is advertising. Advertising is used to promote an idea for selling goods and services and we can communicate to various people at the same time without making any personal contact with them.
c) (i) Public relation 
(ii) Advertising
(iii) Personal selling or door to door selling
(iv) Sales promotion 

Regards

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