The correct answer is C. Saprophytic.
Saprophytic bacteria are a type of bacteria that get their food from dead organic matter. They are found in soil, water, and on decaying plants and animals. Saprophytic bacteria play an important role in the environment by breaking down dead organic matter and releasing nutrients that can be used by other organisms.
Parasitic bacteria are a type of bacteria that live on or in other living organisms (hosts) and obtain nutrients from them. Parasitic bacteria can cause disease in their hosts, and some can even be fatal.
Autotrophic bacteria are a type of bacteria that can produce their own food from inorganic substances. They do this through a process called photosynthesis, which uses sunlight to convert carbon dioxide and water into glucose. Autotrophic bacteria are found in a variety of environments, including soil, water, and the atmosphere.
None of the above is not a correct answer.