Xylem translocates:
Water only
Water and mineral salts only
Water, mineral salts and some organic nitrogen only
Water, mineral salts, some organic nitrogen and hormones
Xylem is involved in the translocation of water, mineral salts, some organic nitrogen and hormones. It also provides mechanical strength to the plant. Xylem is a complex tissue and is mainly comprising tracheids, vessels, xylem fibres and xylem parenchyma.
Hence the correct option is d.