Answer:
The correct answer for this is : When a large star collapses it forms a massive blackhole. the fourth one is the anwer..
The speaker had a specific identity. He was A.H.'s friend and this was the way he mourned him. No one else mourned him with those words. No one else shared the same experiences with A.H. The I may be known to the reader but that doesn't matter. The I is expressing his personal grief in his poems.
Stars are glowing balls of gas that erupt at times.
