Answer: B, this is because higher luminosity white dwarfs will be in the B spectrum white dwarf category.
A would be the correct awnser
It could be because of a earthquake, which is formed when two of earth's plates crash into each other
According to Wikipedia,:
The World bank is an international financial institution that provides loans to countries of the world for capital projects. The World Bank is located in Washington, D.C. and was founded in the year of 1944.
