Which one of the following statements is correct?

• Correct answer
  A

  Red muscle fibres produce ATP aerobically under normal oxygen conditions.
• B

  Mitochondria are more in white than in red muscle fibres.
• C

  Lactic acid accumulates more in red than in white muscle fibres under similar (c) conditions.
• D

  All muscle fibres primarily produce ATP anaerobically.

Hence, the correct answer is option: 'A'.