None of the above statements are correct.
An amoeba is a single-celled organism that is responsible for multiple functions such as locomotion, feeding, and reproduction. On the other hand, a red blood cell is a specialized cell in the human body that is responsible primarily for transporting oxygen to tissues and removing carbon dioxide. Red blood cells do not possess any of the functions of an amoeba such as locomotion or reproduction.
So, the correct response would be:
An amoeba is responsible for multiple functions, while a red blood cell is responsible for a specific function.