Your question is Two-Sensor Temperature Control Faults. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Scenario: A room contains two sensors, how would you utilize them to keep the room at a desired temperature, and what would you do if one or both sensors weren't outputting a signal?