What can we infer M. Athalie Range believed?

A. Women and minorities should have a separate PTA to belong to.
B. Joining organizations like the PTA is a good place to start making changes.
C. The Department of Community Affairs was not as important as it should have been.
D. African American children experienced equal rights to education under the law.

C. She battled local government to get clean drinking water and got other voters involved.

Explanation:

This event occurred  In 1948. At that time, M. Athalie Range realized that many schools in poor neighborhood did not have a proper drinking water like the schools in bigger areas have even though both subsidized by the government. The water drinking fountains in poor neighborhood tend to be too hot to drink and the fact that the pipes laid on top of ground made the quality of the water became questionable.

She managed to bring this issue to the local government along with other voters from Parent Teacher Association in the local communities and eventually managed to fix this problem.

there is an explationation of this on a site called crash   course world history 1

sounds good to me mate!