Where should the dash(es) go in this sentence?

"What are you-" Maricela stopped as she turned around and saw the spaceship lowering

towards them.

Choose 1 answer:

"What are you" Maricela stopped-as she turned around and saw the spaceship lowering

towards them.

"What are you" Maricela stopped as she turned around and saw the spaceship-lowering

towards them.

"What are you-" Maricela stopped as she turned around and saw the spaceship lowering

towards them.