A Solid Encapsulated Radioactive Source

A solid encapsulated radioactive source

A) can be handled with the hands without any protective covering of the hands.
B) can be handled with the hands at any time as long as vinyl gloves are worn.
C) can only occasionally be handled with the hands as long as vinyl gloves are worn.
D) is never to be touched directly with the hands;instead long tongs which add distance should be used.