Answer:
Option (A)
Step-by-step explanation:
The Magnetic Resonance Imaging (MRI) is usually referred to as a medical diagnostic test in which the response and behavior of the atomic nucleus of tissues within the body are being measured when radio-waves of high frequencies are allowed to be incident on the body within a region of strong magnetic field.
Before carrying out this test, the metal object such as pacemakers, and other metallic objects must be removed, as it involves high-frequency waves that may react with the metallic objects and can cause harm to the nearby tissues.
So, this imaging technology needs a particular type of safety measures in order to check for metal objects.
Thus, the correct answer is option (A).