After each of the following sentences, a list of possible interpretations of the sentence is given. Choose the interpretation that you consider most appropriate for each sentence.
When Audu took that step, he was on the horns of a dilemma. This means that he

• A.was calm and composed
• B.faced a choice between two unpleasant alternatives
• C.had many attractive options
• D.sleept over the matter before he took the step