Final answer:
The master WARNING/CAUTION switch lights are located on the Overhead Panel of an aircraft's cockpit, enabling immediate visibility to pilots for prompt action.
Step-by-step explanation:
The question pertains to the location of the master WARNING/CAUTION switch lights in an aircraft cockpit. These switch lights are critical aspects of the cockpit warning system, alerting pilots to various important or emergency situations regarding the aircraft's systems and functions.
The master WARNING/CAUTION switch lights are typically located on the Glare shield or Overhead Panel of an aircraft's cockpit. This location allows them to be immediately visible to pilots, ensuring that any warnings can be seen and addressed promptly. The provided list you gave (window control, cruise control button, steering wheel, etc.) mostly relates to car components and is not relevant to the cockpit of an aircraft. Therefore, the correct answer to the given question is: a) Overhead Panel.