Answer:
D: How many hours did you spend watching TV today?
Explanation:
Statistical questions can be identified by the fact that they can have multiple answers. This question could be answered in many different ways. "Did you watch four hours of TV today?" is a yes or no question (which makes it non statistical), "Did you watch TV today?" is the same way. "Did you watch five or six hours of TV today?" also only has two possible answers, which means it is non statistical.
D: How many hours did you spend watching TV today? is the only option that has multiple possible ways of answering