Step 1: Understanding the Question:
• Choose the correct combination of statements A to D.
Step 2: Detailed Explanation:
• A is correct: humans lack the enzyme cellulase, so cellulose is not digested.
• D is incorrect: the branched polymer of glucose is glycogen in animals; in plants the branched polymer is amylopectin (starch).
• C is correct: the TCA cycle operates under aerobic conditions.
• B is accepted as correct in the NTA final key.
• Hence the combination is A, B and C.
Step 3: Final Answer:
As per the NTA final answer key, the correct option is (C) A, B and C only.