Which of the following statements correctly describes the response of paramecium to changes in water solute concentrations? O A. When water solute concentrations rise, the paramecium reduces its rate of contractions.
O B. When water solute concentrations rise, the paramecium increases its rate of contractions.
O C. When water solute concentrations fall, the paramecium reduces its rate of contractions.
O D. The rate of contractions remains constant no matter what the water solute concentration is.