I saw a bust of someone standing in the middle but did n't stop because I was in a hurry to take pictures of the school , afraid that it will be too dark for good photos when the night approached . All the offices and classrooms were closed . I was walking along the quiet corridor when I saw a notice board saying " Working Class . No entrance " Perhaps that 's a late class .

Question: Why was the writer in a hurry to take photos ?
Answer: Because soon it would be too dark .Because all of the classrooms were closed .Because they saw a bust of someone standing in the middle .None of the above choices .