In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each blank.
Advertising is the promotion of goods and services. It provides an (166)_____ to the manufacturing companies to sell their (167)_____ better than their competitors. Every time we switch (168)_____ the television we find some product or the other (169)_____ pushed towards us. It cannot be denied that the (170)_____ behind commercial advertising is to increase sales and earn more profit.
Select the most appropriate option to fill in blank number (168).

Options

A. at
B. off
C. on
D. in

Answer

C

Explanation

(c)on
Everytime we switch on the television we find some product or the other
The preposition ‘on’ here means to start , thus after starting the television we see many different advertisements.Hence the correct word will be “on”.