Which of the Following Statements About Muscle Movement Is True

Multiple Choice

 Which of the following statements about muscle movement is true?

A) The only thing that muscles can do is contract.
B) A single muscle can bend a joint by contracting and straighten it by relaxing.
C) Smooth muscles cause movement by contracting, while striated muscles cause movement by contracting and relaxing.
D) Striated muscles cause movement by contracting, but smooth muscles cause movement by contracting and relaxing.