Answer:
B
Step-by-step explanation:
Salt water increases the salinity of the soil. This salt water is also hypertonic in concentration (i.e. it possesses a greater osmotic pressure) to the solution in the plant. Due to this difference in osmotic concentration, water is forced to flow out of the plant into the soil making the plant to lose more water than it can absorb. Hence, it will affect the growth rate of the plant because water is a vital component for growth in plants.