In (A), the first sentence shows the word order used for wh-questions in English and German. The second sentence is an echo question; it would only be uttered after receiving an unsatisfactory or confusing answer to a question. One could replace the word "wen" (which indicates that this sentence is a question) with an identifier such as "Mark": 'Kate liebt "Mark"?' [Kate loves "Mark"?. In that case, since no change in word order occurs, it is only by means of stress and tone that we are able to identify the sentence as a question.