Most bacterias are heterotrophs. Meaning they can't make their one good ( sadly :3)
Endocrine system is the answer
Ezywhen salinity in soil increases the soil becomes hypertonic when compared to cell sap.the movement of particles from a lower concentrated solution to a higher concentrated solution is callede osmosis. in general conditions cell sap is at higher conc. than surrounding media. this allows water and minerals to enter the plant. but when soil is at higher conc. i.e., when its salinity increases the process becomes reversed can you imagine its consequenses?
The answer is either C because both C and D cause disease, but only C is a living organism. Hope that helps!