The correct option is A.
Smooth muscle cells (SMCs) are involuntary, non-striated muscle cells that line the insides of hollow organs such as arteries, lungs, bladder, the digestive system, and the reproductive system
Smooth muscle cells are elastic, not striated, spindle-shaped, and contain a single central nucleus. Smooth muscle cells are arranged together in sheets and this organization means that they can contract simultaneously. However, they do contain other normal cell organelles such as acrosomes but in lower numbers.
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