Final answer:
A super-tiny black hole might refer to a hypothetical micro black hole, but the provided text does not specifically discuss tiny black holes, instead it focuses on the supermassive black hole at the center of the Milky Way.
Step-by-step explanation:
A super-tiny black hole, which is not mentioned specifically in the provided text, could be an informal term for what is known as a micro black hole or a quantum black hole. These hypothetical black holes are theorized to be very small compared to stellar black holes and may have been produced in high-energy cosmic events or could possibly be produced in particle accelerators such as the Large Hadron Collider.
They are expected to evaporate quickly through a process known as Hawking radiation. However, the options provided in the question do not accurately describe where such black holes are found, as they are speculative and not yet observed.
The context provided speaks about black holes of much larger scales, particularly the supermassive black hole located at the center of the Milky Way Galaxy, which has a mass equivalent to 4.6 million Suns. This supermassive black hole and others like it in different galaxies represent the extreme cases of black holes, containing immense mass packed within a relatively small volume of space.
The evidence for these black holes comes from observing the effects of their gravity on surrounding objects, rather than direct observation, as they do not emit light.