Which of the Following Is an Example of a Justiciable

Which of the following is an example of a justiciable controversy that gives a person or persons a standing to sue? 

A) A lawsuit filed by a hospital against its official sewage cleaners as the latter failed to remove toxic garbage from the hospital's vicinity 
B) A lawsuit filed by a shop owner against an innocent customer because of previous personal grudges 
C) A lawsuit filed by a school district against a children's television channel for broadcasting violent advertisements 
D) A lawsuit filed by an environmental group against the U.S. government for the latter's purchase of dolphin oil 
E) A lawsuit filed by a not-for-profit organization against an entrepreneur for constructing a leather factory near a community center