i. Banking and Finance: Business activities cannot be undertaken unless funds are available for acquiring assets, purchasing raw materials and meeting other expenses. Necessary funds can be obtained by businessmen from a bank. Thus, banking helps business activities to overcome the problem of finance.

ii. Advertising is one of the most important methods of promoting the sale of products, particularly, consumer goods, like electronics and automobile goods, soaps, detergents, etc. Thus, for promoting sales, information about the goods and services advertisement is required so that it reach potential buyers.