The striking differences between the semantic organization of Native American languages and that of European languages, in both grammar and vocabulary, have led scholars to think about the degree to which differences in language may be correlated with nonlinguistic differences.
(A) that of European languages, in both grammar and vocabulary, have
(B) that of European languages, including grammar and vocabulary, has
(C) those of European languages, which include grammar and vocabulary, have
(D) those of European languages, in grammar as well as vocabulary, has
(E) those of European languages, both in grammar and vocabulary, has
I narrow down my options to A and C based on the SV pair
S: The striking differences
V : have
Between that and those I gave preference to those. so selected C, but OA is A.
Discussion will be appreciated.
N.B. This question is from the free version of Gmat Prep software Diagnostic Test.