Answer:
a. quota sampling.
Explanation:
Quota sampling -
It refers to the method of sampling , where the data or information is collected from a certain specified group of people , is referred to as quota sampling .
The method is helpful for marketing the goods and services of the company .
The likes and dislikes of the people is given the priority and the product is altered according to the taste of the consumers , in order to increase the sale of the product .
Hence , from the given scenario of the question ,
The correct answer is a. quota sampling.