Final answer:
A teacher in Florida should only express personal views when they align with the institution they represent, as per the Principles for Professional Conduct.
Step-by-step explanation:
According to the Principles for Professional Conduct for the Education Profession in Florida, when it states that a teacher has an obligation to the public to "take reasonable precautions to distinguish between personal views and those of any educational institution or organization with which the individual is affiliated", it means that the teacher should only express their personal views if they align with the educational institution or organization. The teacher's responsibility is to avoid confusion between their personal opinions and the official stance of the institution they represent. Therefore, the correct answer to the student's question is option 3).