Which of the Following Communities Illustrate a Bottom-Up Approach of Community

Which of the following communities illustrate a bottom-up approach of community development?

A) a group of politicians agreed to develop a bike and hiking trail for a newly developed community
B) newcomers to a community organized a tutoring program for the school-aged children
C) a group of professionals developed a program on financial aid for students who come from a lower income part of the community
D) seniors in the community attended a program of exercise and nutrition in the community centre
E) faculty organized a group of students to clean the litter in the streets around the high school