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Select the proper statement about cryopr...

Select the proper statement about cryopreservation-

A

Sperm and ovum is conserved in gaseous nitrogen at `196^@C` temperature

B

Fruit, leaf or root conserved in gaseous hydrogen at -`196^@C` temperature

C

Animal sperm, ovum or seed of plants is conserved in liquid nitrogen at - `196^@C` temperature

D

Tissue, sperm, ovum or zygote is conserved in liquid nitrogen at- `196^@F`

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