NEET 2020 Botany question on Biotechnology

1. A.
   Sapwood is involved in conduction of water and minerals from root to leaf
2. B.
   Sapwood is the innermost secondary xylem and is lighter in colour
3. C.
   Due to deposition of tannins, resins, oils etc., heart wood is dark in colour
4. D.
   Heart wood does not conduct water but gives mechanical support

[NEET 2020]