a question

Unlike most warbler species, the male and female blue-winged warbler are very difficult to tell apart.

A.

B.Unlike most warbler species, the gender of the blue-winged warbler is very difficult to distinguish.

C.Unlike thos in most warbler species, the male and female blue-winged warblers are very difficult to distinguish.

D.It is very difficult, unlike in most warbler species,to tell the male and female blue-winged warbler apart.

E.Blue-wingedwarblers are unike most species of warbler in that it is very difficult to tell the male and female apart.

the answer is E

如果把Ａ选项中的ＷＡＲＢＬＥＲ改为ＷＡＲＬＢＬＥＲＳ ，是不是这样就对了呢？？？

My two cents:  the following A is correct.

Unlike most warbler species, blue-winged warbler is very difficult to tell the male and female apart.

thx!!!!!!!!!!!

I see~~~~