What is the fate of the male gametes discharged in the synergid?

1. A. One fuses with the egg and other fuses with central cell nuclei.
2. B. One fuses with egg other(s) degenerate (s) in the synergid.
3. C. All fuse with the egg.
4. D. One fuses with the egg, other(s) fuse(s) with synergid nucleus.

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