In the textbook publishing business, the secondquarter is historically weak, because revenues are low and marketing expenses are high as companies prepare for the coming school year.
(A) low and marketing expenses are high as companies prepare
(B) low and their marketing expenses are high as they prepare
(C) low with higher marketing expenses in preparation
(D) low, while marketing expenses are higher toprepare
(E) low, while their marketing expenses are higher inpreparation
if (D) is changed into low, while marketing expenses are high to prepare