choose the correct sentence A, B, C or D. A: The starry sky at night in the countryside is more clearer and more fantastic than that in cities. B: The starry sky at night in the countryside is more clear and fantastic than that in cities. C: The starry sky at night in the countryside is clearer and fantastic than that in cities. D: The starry sky at night in the countryside is clearer and more fantastic than that in cities.