A、They lost contact with the emergency department. B、They were trapped in an underground elevator. C、They were injured by sudden

Rescue efforts were underway Thursday morning for 17 miners who were stuck in an elevator below ground at Cargill rock salt mine near Lansing, New York, according to Marcia Lynch, public information officer with Tompkins County’s emergency response department. Emergency workers have made contact with the miners via a radio, and they all appear to be uninjured, said Jessica Verfuss, the emergency department’s assistant director.
Crews have managed to provide heat packs and blankets to the miners so that they can keep warm during the rescue operation, Verfuss said. Details about what led to the workers’ being trapped in the elevator weren’t immediately available. The mine, along New York’s Cayuga Lake, processes salt used for road treatment. It produces about 2 million tons of salt that is shipped to more than 1,500 places in the northeastern United States. The rock salt mine is one of three operated by Cargill, with the other two in Louisiana and Ohio.
3. What does the news report say about the salt miners?
4. What did the rescue team do?