Here is another version of the question. I agree that empower gmat has put the wrong OA for the question above. The correct answer should be E, but OA is D.
Here is another version of the same question from Empower Gmat with OA is E.
Like that witnessed by the Shawnee and Choctaw nation, the Iroquois coalesced as a people in the 17th century, and developed three distinct political and geographical divisions, including the eastern, western and southern, which sometimes created differing alliances with nearby European powers.
A Like the Shawnee and Choctaw nation, the Iroquois coalesced as a people in the 17th century, and developed three distinct political and geographical divisions, including the eastern, western and southern, creating
B As it is of the Shawnee and Choctaw nation, the Iroquois coalesced as a people in the 17th century, and developed three distinct political and geographical divisions, including the eastern, western and southern, that sometimes created
C Like that witnessed by the Shawnee and Choctaw nation, the Iroquois coalesced as a people in the 17th century, and developed three distinct political and geographical divisions, including the eastern, western and southern, creating
D As witnessed by the Shawnee and Choctaw nation's, the Iroquois coalescing as a people in the 17th century, and developing three distinct political and geographical divisions, including the eastern, western and southern, which sometimes creating
E Like that witnessed by the Shawnee and Choctaw nation, the Iroquois coalesced as a people in the 17th century, and developed three distinct political and geographical divisions, including the eastern, western and southern, which sometimes created
OA is A