the jounery around the world took the old sailor nine months,( ) the sailing

题目

the jounery around the world took the old sailor nine months,( ) the sailing
The jounery around the world took the old sailor nine months,( ) the sailing time was 226
A of which
B during which
C from which
D for which
答案选的是A,为什么啊,还有这句话怎么翻译啊

答案

226 of the nine months was the sailing time
环球之旅花费了老水手九个月的时间,其中226天是在路途中