Which one of the following statements is incorrect?
(a) Heart muscles are striated and involuntary.
(b) The muscles of the hands and legs are striated and voluntary.
(c) The muscles located in the inner walls of the alimentary canal are striated and involuntary.
(d) Muscles located in the reproductive tracts are unstriated and involuntary.
The answer is option (c) The muscles located in the inner walls of the alimentary canal are non-striated and involuntary.