The right answer is three phosphates.
Adenosine (base + sugar) is a nucleoside formed when adenine is attached to a ribose nucleus (as ribofuranose) via a β-N9glucoside linkage.
In biochemistry, adenosine triphosphate, often abbreviated ATP, is a substance produced by all living beings known until now. It is necessary for the metabolism of living beings, since it provides the energy necessary for its chemical reactions. Without ATP, there would be no living organism, because without energy, we can neither move, nor reproduce, nor do anything else necessary for our survival.
ATP is produced continuously, and if its production is interrupted, it causes a rapid death of the organism.