Final answer:
The conditions resulting in ATS automatic disengagement are loss of sensor data, severe weather conditions, and manual override by the pilot.
Step-by-step explanation:
The conditions resulting in ATS (Automatic Train Supervision) automatic disengagement are loss of sensor data, severe weather conditions, and manual override by the pilot.
When there is a loss of sensor data, it can cause the automatic system to disengage as it relies on accurate and up-to-date information to operate safely. Severe weather conditions, such as heavy rain or snow, can affect the sensors and communication between train components, leading to disengagement. Additionally, pilots or operators can manually override the automatic system if they need to take control for any reason.
Therefore, the correct answer is d) All of the above as all of these conditions can result in ATS automatic disengagement.