Reasoning: We need to find a logical inference from this argument.
(A) Incorrect: This option cannot be inferred from the definition as the passage states that most buildings are residential, which implies some exception for all residential buildings to be recognized as houses.
(B) Correct: This option can be inferred directly from the definition for a building to be recognized as a house, the first step is to be registered with Housing Authority.
(C) Incorrect: This option cannot be inferred from the definition because the condition of all of the buildings within a residential complex is not mentioned and cannot be inferred.
(D) Incorrect: The slums cannot be recognized as houses as they are an exception as per the definition.
(E) Incorrect: The condition of people working in factories and residing in slums is not related to the definition of a house. This option is an external idea.