To ensure consistently high quality in its merchandise,
the chain of retail stores became involved in every aspect of their suppliers’ operations, dictating not only the number of stitches and the width of the hem in every garment as well as the profit margins of those suppliers.
(A)
their suppliers’ operations, dictating not only the number of stitches and the width of the hem in every garment as well as
(B)
its suppliers’ operations, dictating
not only the number of stitches and the width of the hem in every garment
as well as (C)
their suppliers’ operations, dictating not only the number of stitches and the width of the hem in every garment but also
(D)
its suppliers’ operations, dictating
not only the number of stitches and the width of the hem in every garment
but also (E)
their suppliers’ operations, dictating the number of stitches, the width of the hem in every garment, and