Oocyte resorption occurs under the action of:

Correct option is A

→ Follicular cells initiate the resorption (atresia) of oocytes when they fail to mature or are not spawned.
→ They release enzymes that break down yolk and oocyte components.
→ This process helps recycle nutrients back into the ovary.
Information Booster:
→ Oocyte atresia increases under stress, poor nutrition, or hormonal imbalance.
→ Ensures only healthy oocytes proceed to maturation and ovulation.
→ Key mechanism for regulating fecundity in fishes.
Additional Information (Other Options):
(b) Leucocytes & (c) Histiocytes: Involved in immune functions.
(d) Leydig cells: Produce androgens in testes, not related to oocyte resorption.