Bryon possessed powers of observation that would have made him a great anthropologist and that makes his letters as a group the rival of the best novels of the time.
a.makes his letters as a group the rivals of
b.makes his letters as a group one to rival
c.makes his letters a group rivaling
d.make his letters as a group the rival of
e make his letters a group which is the rival of
答案是 d
请教一下rival 在D 中的用法
og 中没有提到这种用法 啊 | 
