Entry by other sperms into the oocyte is stopped after the first one penetrates the

Granulosa cells

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Corona radiata

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Zona pellucida

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Cytoplasm

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Solution

The correct option is C
Zona pellucida

The zona pellucida (ZP) is a specialized extracellular matrix surrounding the developing oocyte (egg/ovum) within each follicle in the ovary. The zona pellucida has many different roles including that during oocyte development, protection during growth and transport, fertilization, spermatozoa binding, preventing polyspermy, etc.

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