In the film Twister, a water tower is not one of the objects thrown at the characters Bill and Jo during the EF-5 tornado. The correct answer is d.
The question pertains to the film Twister, in which two storm chasers named Bill and Jo encounter an EF-5 tornado. The specific scene may include various objects being thrown by the tornado, including houses and vehicles. The correct answer to the student's question, based on the options provided, is (d) a water tower.
In the iconic scenes of such films, it's common to see a wide variety of large and small items being tossed around by the severe winds. However, from the given choices, a water tower is not typically an object that would be classified as being 'thrown' at characters due to its size and structural foundation.
The correct answer is d.