X-ray technicians wear protective gear to keep them safe from the X-rays. Why are X-rays dangerous?
A. They have long wavelengths that can penetrate materials, and their low energy can damage matter.
B. They have short wavelengths that can penetrate materials, and their high energy can damage matter.
C. They have long wavelengths that can penetrate materials, and their high energy can damage matter.
D. They have short wavelengths that can penetrate materials, and their low energy can damage matter.