With reference to LaPiere's study of hotels in the United States, whi…

The correct answer is Option (1) → Managers' questionnaire replies - a negative attitude towards Chinese guests

Option (1) Managers' questionnaire replies - a negative attitude towards Chinese guests — Correct. Most managers wrote that they would not give rooms to Chinese guests. That written reply showed a negative attitude towards the Chinese.

Option (2) Actual treatment of the Chinese couple - refused service by most hotels — Incorrect. The couple was refused service only once, by one hotel. Almost everywhere they got rooms, so the actual behaviour towards them was positive.

Option (3) Questionnaires to managers - sent before the couple began the journey — Incorrect. The order is reversed. The questionnaires went out some time later, after the couple had already travelled and stayed in the hotels.

Option (4) Main conclusion - behaviour sometimes decides the attitude — Incorrect. The study shows that attitudes may not always predict behaviour. The idea that behaviour decides the attitude comes from the Festinger and Carlsmith experiment.