Use the sentences from A Star’s Life: The Inside Story to answer the question.

She lived a lot like Big Blue, but when SHE went supernova, her gravity was so strong that she completely collapsed in on herself, leaving just a black hole in space from which nothing, not even light, can ever escape. So we don't really know what she's up to in there.

Which underlined word in the sentences is a cause-and-effect signal word?

(1 point)
Responses

but
but

so
so

there
there

just
just

so

The underlined word "so" in the sentence "her gravity was so strong that she completely collapsed in on herself" is a cause-and-effect signal word.