Which of the Following Statements Concerning Smooth Muscle Is Incorrect

Which of the following statements concerning smooth muscle is incorrect?

A) smooth muscle can develop less tension per unit cross-sectional area compared to skeletal muscle.
B) smooth muscle can maintain tension with comparatively less ATP consumption than skeletal muscle.
C) smooth muscle lacks troponin and tropomyosin.
D) the range of lengths over which smooth muscle is able to develop near maximal tension is much greater than for skeletal muscle.
E) a hollow organ enclosed by smooth muscle accommodates variable volumes with little change in the pressure exerted on the contents.