The correct option is A Pinus
Pinus is a gymnosperm, and gymnosperms lack xylem vessels anatomically. Gnetum is an exception. It is a gymnosperm and unlike other gymnosperms, it has xylem vessels.
Rose and mango are angiosperms. The flowering plants whose characteristic feature is the presence of all the xylem elements. The xylem elements include tracheids, vessels, fibres and xylem parenchyma.