Given: You respond to a service call on a furnace and find that the pilot light is not working. You relight the pilot and release the reset button and the pilot goes out again. Which one of the following is NOT the cause of the problem?

Given: You respond to a service call on a furnace and find that the pilot light is not working. You relight the pilot and release the reset button and the pilot goes out again. Which one of the following is NOT the cause of the problem?