ALU decides to hold live on-campus classes at night. Because of Covid still being a health risk, ALU orders that all students who attend class must show proof of Covid vaccination and wear a mask while on school grounds. Failure to comply with these two requirements means that a student cannot attend class. Debate, is ALU exercising a reasonable duty of care to ensure the health of its students, faculty and school administrator, or are ALU's mandates unreasonable?

Incorporate at least one credible source to support your explanation