Answer:
Pie chart
Explanation:
Among all the other charts, Pie chart is commonly used to find the largely used, and scarcely used items in a quick phase.
This stands best do survey. Here is also a situation given in the question as like, the teacher has given the list of social media and the children are polling on to it.
So a line chart would definitely show good representation but it wouldn’t be an effectual visual appearance for survey kind of approach.