Answer:
c. Schools must allow all extracurricular organizations to use their facilities, including religious groups so they are allowed.
Step-by-step explanation:
Bible studies within a school are considered extracurricular activities and should not be confused with the Church's interference in state affairs. This applies not only to Christian Bible studies, but to any religious activity (of any religion) promoted by students at school. With that we can conclude that schools must allow all extracurricular organizations to use their facilities, including religious groups so they are allowed.