Olivia and Serena Were Preparing a Presentation to Give to City

Olivia and Serena were preparing a presentation to give to city hall officials regarding several environmental issues that needed addressing in their city. They realized that they would be taken more seriously if they showed up with a signed petition and a large number of supporters. Which of the following groups should they target in order to achieve the greatest number of individuals to help them in their environmental campaign?

A) people working in the service sector
B) people working in manufacturing
C) people who are newly landed immigrants
D) people who are on social assistance