Which statement correctly describes adipocyte hypertrophy and hyperplasia in fat storage?

• A. Adipocytes can enlarge (hypertrophy) to store more triglyceride and new adipocytes can form (hyperplasia), enabling large increases in total fat storage.
• B. Hyperplasia refers to shrinkage of adipocytes while hypertrophy describes formation of new adipocytes from bone marrow cells which is unrelated to fat storage.
• C. Adipocytes store glycogen primarily, and their capacity is more limited than liver because they cannot expand in size to accommodate extra carbohydrate-derived energy.
• D. Adipocytes only shrink and cannot increase in number or size after adolescence, so body fat always remains limited and strictly regulated by carbohydrate intake.

Answer: (A)