Seeds when placed in water swell because of
imbibition
The correct option is (C)
Explanation of the correct option:
Explanation of the incorrect options:
Option (A)
Osmosis is a process in which water or other solvents go from higher concentration to lower concentration through a semipermeable membrane.
Option (B)
Root pressure is a force in plants that helps to drive fluids upward into the water-conducting vessels (xylem).
Option(D)
Diffusion is a process in which molecules move from a high concentration to a region of low concentration.
Final answer: Seeds when placed in water swell because of imbibition.