Answer:
Option B) Swell
Explanation:
When runner was running he was sweating which results in loss of water from cells and cells become shrink. But at the end of marathon when he drink water his cells will gain water and store it, which results in swallowing of cells.
Well a,b and c are plants
But d) Zooplankton is a type of animal and does not belong at the bottom of the pyramid.
Good luck! (:
