Answer:
Option A. Online Surveys.
Explanation:
An online survey refers to a questionnaire that can be completed by the target audience over the Internet. Online surveys are usually created as Web forms with a database to store the answers and statistical software to provide analytics.
Online surveys are generally considered to be a cheap and fast way of getting information about the target audience. They also have a potential for international reach and can be used to gather large amounts of data in a short time.
The merits of online survey include: