单项选择题

Directions: In this section you will hear two mini-talks. At the end of each talk, there will be some questions. Both the talks and the questions will be read to you only once. After each question, there will be a pause. During the pause.
Which of the following is the symptom of the infection

A. Itching.
B. Sore throat.
C. Powerful, daily sneezing episodes.
D. Multiple, early-morning sneezes.
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