Millimeter wave technology applied in body scanning equipment is often preferable to the traditional magnetic imaging found in many government buildings, hospitals, schools, and other public buildings because _____. Responses A. it is smaller and can be concealed under a box or in a planter, allowing the operator to scan people entering a space without their knowledge B. it is less expensive than the magnetometer or magnetic scanner C. it is a technology that will never be replaced with a next-generation scanning device D. it is able to detect not only metal (as does a magnetometer) but also plastics and other composite materials