According to the （）that affixes occupy in words, affixation fall

According to the （）that affixes occupy in words, affixation falls into prefixation and suffixation.
A、times
B、positions
C、persons
D、words
【正确答案】：B
【题目解析】：根据词缀占据的位置，词缀分为前缀和后缀。