When this type of ultra-massive star runs out of fuel, it goes through an initial WHSH! of collapse. However, because its enormous mass generates such tremendous gravitation, there's no CRASH! of a rebound or BOOM! that blasts gases out into a supernova. Instead, the matter just keeps on whooshing inward, directly forming a black hole.

—A Black Hole Is NOT a Hole,
Carolyn Cinami DeCristofano

Choose the signal words that point to a cause in the passage. You will check more than one correct answer.

however
instead
when
because
through