Answer:
a. push poll
Explanation:
Push poll -
It refers to as an interactive marketing method , in order to influence the individual or group to buy a certain goods or services , same method is employed during the political campaign , where the voters are manipulated in a way to vote for a specific person , is referred to as push poll .
The method is widely used in order to control the minds of the people .
Hence , from the given scenario of the question ,
The correct answer is push poll .