One of the Things That Our Current "Standard Model" of the Big

Multiple Choice

One of the things that our current "standard model" of the Big Bang Theory doesn't explain is

A) why the universe is expanding
B) why there is a cosmic microwave background filling all of space
C) why the temperature of the cosmic microwave background is so uniform throughout all of space
D) why there is more helium in the universe than stars could have produced in 13.8 billion years
E) why the galaxies show a red shift