Which of the following types of muscle tissue is being described on the basis of the given statements?
$(i)$ These muscle fibres taper at both ends and do not show striations.
$(ii)$ The wall of internal organs such as the blood vessels,stomach,and intestine contain this type of muscle tissue.
$(iii)$ They are 'involuntary' as their function cannot be directly controlled.

• A
  Skeletal muscle
• B
  Smooth muscle
• C
  Cardiac muscle
• D
  All of these