Anaplerotic reactions serve to:. a) divert materials out of the citric acid cycle for use in biosynthesis.
b) regulate energy production by bypassing the citric acid cycle.
c) replenish the citric acid cycle if it becomes depleted of intermediates by biosynthetic demands.
d) produce pyruvate, which initiates the cycle when glucose degradation is not occurring.

Option C.

replenish the citric acid cycle if it becomes depleted of intermediates by biosynthetic demands.

Explanation:

Anaplerotic reactions that form intermediates for kreb cycle, citric cycle. They form intermediates for metabolic pathways like citric cycle. The citric cycle is important for energy production and biosynthesis. Anaplerotic reactions help to restore or replenish intermediates in citric cycle if there is depletion of intermediates biosynthetic demands.

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.