The central idea is the idea that ties all the other ideas together to make a story
B. would be the best choice to choose.
Answer:
Examples and Statistics
Explanation:
The examples being 'they sign up to build a school for a gold star on their resume, but they have no real building skills and take jobs away from local construction workers' and 'they arrive to teach English but instead take selfies with the locals'. The statistics are the resources they've used to write this (ex. Schulten, Rolfe, Michaels, etc.) and the information they've drawn from it.
