根据上述数据，完成下列填空：

下列函数中，既是偶函数，且在区间（0，+∞）内是单调递增的函数是（　　）

A

    Ann is a basketball star. She is 18 years old. She usually gets up at six o'clock. She eats breakfast at seven. Ann and her friends usually play basketball from eight to twelve o'clock. At twelve o'clock she has lunch. School starts at two o'clock, she plays basketball again. At six thirty she has dinner. Ann usually does her homework at eight. At nine thirty she watches TV. Ann usually goes to bed at eleven. Basketball is her life!

根据短文内容,判断句子正误。