Final answer:
Title IX of the Education Amendments of 1972 prohibits sex discrimination in education programs or activities that receive federal financial assistance, ensuring equal opportunities for both male and female students.
Step-by-step explanation:
The action that is prohibited under provisions of Title IX of the Education Amendments of 1972 is option A: A principal refuses to organize athletic events and programs for female sports teams.
Title IX is a federal law that prohibits sex discrimination in education programs or activities that receive federal financial assistance.
It ensures that schools offer equal opportunities in terms of facilities, funding, and resources to both male and female students.
Learn more about Title IX and sex discrimination in education