Which sentence from the passage best supports the idea that supernovas are rarely seen in the Milky Way Galaxy? A.
But supernovas are difficult to see in our own Milky Way Galaxy because dust blocks our view.
B.
For example, in 2008 a teenager discovered a supernova.
C.
A supernova happens where there is a change in the core, or center, of a star.
D.
In 1604, Johannes Kepler discovered the last observed supernova in the Milky Way

I NEED AN ANSWER ASAP
(the passage is not needed.)