Cassowary,a flightless bird that feeds mainly on fruits but is classified a truly omnivorous,belongs to the ratite family,
a group of large, wing-less topical birds that is seen only in Papua New Guinea and are not represented in any other habitat in the world.
A a group of large, wing-less topical birds that is seen only in Papua New Guinea and are
B. a group of large, wing-less topical birds that are seen only in Papua New Guinea and is
C a group of large, wing-less topical birds that are seen only in Papua New Guinea and are
D a group of large, wing-less topical birds which is seen only in Papua New Guinea and is
E a group of large, wing-less topical birds which is seen only in Papua New Guinea and which is
I had selected D. Correct answer is C.
Explaination by Jamboree is this that Consider the case of 'he is one of the boys who play/plays basketball'. The correct verb is play because modifier who, refers to boys and not one of the boys.
Similarly above. 'Are' verb is right to refer to the birds and not group, which is singular.
I am not convinced by this explanation. Can anyone share any OG question to point this out and is this modifier rule mentioned in any good quality material such as Manhattan Strategy Guide etc?