Which are the three fundamental methods to reduce radiation exposure in the workplace, with brief examples?

• A. Time: minimize duration of exposure; Distance: increase distance from source; Shielding: use barriers like lead or concrete.
• B. Time: maximize duration; Distance: decrease distance; Shielding: remove barriers.
• C. Time: use longer exposure; Distance: stay close to source; Shielding: use thin walls.
• D. Time: ignore time; Distance: irrelevant; Shielding: nothing.

Answer: (D)