Read the following statements in context to muscle tissue and choose the correct answer.
(i) Excessive exercise results in anaerobic respiration and forms lactic acid.
(ii) As per sliding filament theory of muscle contraction, the filament that moves to shorten a muscle is actin.
(iii) The muscles primarily involved in locomotion is striated muscles.

• A

  (i) and (ii) only

• B

  (ii) and (iii) only

• C

  (i) and (iii) only

• D

  (i) (ii) and (iii)