How Are Scientists Preparing for a Possible Asteroid Impact

Multiple Choice

How are scientists preparing for a possible asteroid impact?

A) They are fortifying areas most likely to be hit.
B) They are devising shielding devices that will be stationed on the Earth to reflect impacts.
C) They are cataloging objects in the sky that might be dangerous.
D) They are working on supercooling devices to decrease the incidence of wildfires caused by an impact.
E) They aren't doing anything. Asteroid impacts are not likely enough for scientists to be concerned.