单选题
【正确答案】
A
【答案解析】To compare the quantities, multiply the fractions by the whole numbers in each quantity. The quantity 
of 19 is 
, or 
, which is greater than 1 because the numerator is larger than the denominator. The quantity 
of 13 is 
, or 
of 19 is , or , which is greater than 1 because the numerator is larger than the denominator. The quantity of 13 is , or