In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :

1. A. Synergids, Primary endosperm nucleus and zygote
2. B. Antipodals, synergids, and primary endosperm nucleus
3. C. Synergids, Zygote and Primary endosperm nucleus
4. D. Synergids, antipodals and Polar nuclei

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