D or B(), 'that' usually modifies the subject immediately before it. See the following question: 1. Dr. Sayre’s lecture recounted several little-known episodes in the relations between nations that illustrates what is wrong with alliances and treaties that do not have popular support. (A) relations between nations that illustrates (B) relation of one nation with another that illustrates (C) relations between nations that illustrate (D) relation of one nation with another and illustrate (E) relations of nations that illustrates A, E, and C are incorrect because 'that' modifies nations. D is wrong because the tense is not consistant: Dr.Sayre recounted and illustrate...=wrong Only B stresses 'relation' as the subject. In your question however, Icelandic is not being specified as the subject of 'that,' therefore the 'is' in A, C, and E cannot be right |