Each statement below makes a claim about black holes. based on current scientific understanding of black holes, sort the statements into the correct bin according to whether the statement is:
a) true (based on current science), meaning that scientists are confident in this statement based on current understanding of gravity (general relativity) and stellar evolution
b) not true, either because it contradicts current scientific theory or is contradicted by observations
c) unknown, meaning the statement makes a claim that may or may not be true, and for which we would need new science or new observations to decide which it is.