He thought the jar made of earth ----- little value and let

He thought the jar made of earth _____ little value and let me have it __only one dollar.
A with ,for B of .for C of .by D with,by
这条题目应该怎样选择答案...我选的是D...看了答案后有点郁闷...求大伙帮忙...
of earth已经有of了，后面还加of是什么用法..看不懂...