MCQ
In an embryo sac of a typical angiosperm, there are
- AEgg, synergids and antipodals
- ✓Egg, synergids, polar nuclei and antipodals
- CEgg, synergids, central cell and polar nuclei
- DEgg, synergids and secondary cell
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Choose the correct option for $A, B$ and $C$
$A.$ Administration of progestogens
$B.$ Progestogen-estrogen combination
$C.$ $IUDs$ inserted within $72$ hours of coitus