You are testing a thermostat for a heating/air conditioning system. You have been given the following requirements: • When the temperature is below 70 degrees, turn on the heating system • When the temperature is above 75 degrees, turn on the air conditioning system • When the temperature is between 70 and 75 degrees, inclusive, turn on fan only Which of the following is the minimum set of test temperature values to achieve 100% two-value boundary value analysis coverage?