Who lives in that house?

To frame a Wh-question that corresponds to the given answer "Somebody lives in that house," we need to focus on the person who resides in the house. The correct question to ask is "Who lives in that house?" Here's a detailed explanation:

The Context:
In the given answer, we are informed that there is a person living in a specific house. To gather more information about the individual residing there, we need to use the appropriate Wh-question.

Understanding the Wh-question:
The Wh-question word "Who" is used to inquire about a person or people. In this case, we want to know the identity of the person living in the house. By asking "Who lives in that house?" we are seeking to discover the name or description of the individual residing there.

Reason for Choosing "Who":
Among the options provided, only "Who" is a suitable Wh-question word to inquire about the person living in the house. The other options do not align with the context or the information provided in the answer.

Explanation of Incorrect Options:
a) "What lives in that house?" - This question is incorrect because we are not asking about an object or thing that resides in the house; we specifically want to know about the person living there.

c) "Why lives in that house?" - This question is incorrect as it asks for the reason behind someone living in the house. The answer provided does not mention any reasons; it solely states that there is a person living in the house.

d) "When he lived in that house?" - This question is incorrect as it asks about the time period when someone lived in the house. The answer does not provide any information about the past; it only states that somebody currently lives in the house.

Conclusion:
The most suitable Wh-question to ask based on the given answer is "Who lives in that house?" This question targets the person living in the house and seeks to identify their identity or description. Asking this question will provide more information about the individual residing in the specified house.