Water conduction in angiosperms occurs mainly through:
Correct option is B, Vessels. In BASICS of PLANT problems like this, the accurate statement is Vessels; the others are common mix-ups. Not these: A) Tracheids; C) Fibers; D) Parenchyma. Tissue transport questions usually turn on xylem vs phloem, living vs dead cells, or source vs sink.
Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.