The Soviet Red Army formed at least 42 divisions during the Second World War which had substantial ethnic majorities in their composition.
a) formed at least 42 divisions during the Second World War which had
b) was formed at least 42 divisions during the Second World War that had
c) was comprised of at least 42 divisions throughout World War II who has
d) formed at least 42 divisions during the Second World War which have had
e) created some 42 divisions for World War II wherein

kindly explain y (d) is not correct option.